Stephen Colbert; Amy Sedaris (BoJack Horseman (2014)); Matthew Berry.

Gwen Stefani; Andy Roddick. Also: Counting Crows perform.

Heidi Klum; Kieran Culkin; Leslie Jones.

Luke Wilson; Max Greenfield. Also: Banks performs.

Jeff Goldblum; Jeffrey Kluger.

Connie Britton (Nashville (2012)); Ben McKenzie (Gotham (2014)). Also: Vance Joy performs.

Harry Connick Jr. (Dolphin Tale 2 (2014)); Josh Charles (The Good Wife (2009)). Also: Nick Jonas performs.

Bill Hader (The Disappearance of Eleanor Rigby: Them (2014)); Rep. Nancy Pelosi (D-Cal.). Also: Walk the Moon perform.

Craig Ferguson (Celebrity Name Game (2014)); Octavia Spencer (Red Band Society (2014)); author James Ellroy.

Tina Fey (This Is Where I Leave You (2014)); Adam Pally (The Mindy Project (2012)). Also: Grouplove perform.

Julianna Margulies; Viggo Mortensen; Randy Liedtke.

Martha Stewart; Ana Gasteyer.

Jennifer Hudson performs and is interviewed. Also: Patrick Wilson (Stretch (2014)).

Stephen King; James Harden. Also: Sam Hunt performs.

Andy Samberg (Brooklyn Nine-Nine (2013)); Emily VanCamp (Revenge (2011)); Roy Wood Jr..

Michael Che (Saturday Night Live (1975)); Rosamund Pike (Gone Girl (2014)). Also: Colony House perform.

Nathan Lane; 'Weird Al' Yankovic; Garry Marshall.

Neil Patrick Harris; Rita Wilson. Also: The Both perform.

Sarah Silverman; John Mulaney (Mulaney (2014)).

James Spader (The Blacklist (2013)); Rachel Dratch (The Awesomes (2013)). Also: Elly Jackson perform.

Jeffrey Tambor (Transparent (2014)); Retta (Parks and Recreation (2009)); Sal Vulcano, Joe Gatto, Brian Quinn, James Murray (Impractical Jokers (2011)).

Matthew Broderick; Zachary Quinto. Also: 'Glass Animals' perform.

Robert Downey Jr. (The Judge (2014)); Emmy Rossum (You're Not You (2014)); Chris Gethard (The Chris Gethard Show: Public Access (2011)).

Minnie Driver (About a Boy (2014)); Ike Barinholtz. Also: Florida Georgia Line perform.

Dane Cook (Planes: Fire and Rescue (2014)); Nasim Pedrad; Azar Nafisi.

Artie Lange; Nicole Richie. Also: Royal Blood perform.

Rachel Maddow; Matt Ryan (Constantine (2014)); Wyatt Cenac.

Carrie Underwood and Brad Paisley; Mark Consuelos (Alpha House (2013)). Also: Tip 'T.I.' Harris performs.

Amy Poehler (Parks and Recreation (2009)); writer George R.R. Martin. Also: Captain Sensible performs.

Edward Norton (Birdman or (The Unexpected Virtue of Ignorance) (2014)); Michael Lewis. Also: Jessie Ware performs.

Zooey Deschanel (New Girl (2011)); Ken Marino (Marry Me (2014)); Brad Meltzer.

Kerry Washington (Scandal (2012)); Michael C. Hall (Cold in July (2014)); author Joe Hill.

Martin Short (Mulaney (2014)); Coco Rocha; Simon Rich (Lizard (2015)).

Elijah Wood (Set Fire to the Stars (2014)); Cecily Strong (Saturday Night Live (1975)). Also: Ella Henderson performs.

Eva Longoria (Frontera (2014)); Rob Riggle (Dumb and Dumber To (2014)). Also: Hozier performs.

John Lithgow (Interstellar (2014)); Ben Feldman (A to Z (2014)). Also: Jenny Lewis performs.

David Hyde Pierce (The Good Wife (2009)); Sen. Elizabeth Warren (D-Mass.); Matt Jones (Mom (2013)).

Jack McBrayer (The Middle (2009)); Gael García Bernal (Rosewater (2014)). Also: Ex Hex perform.

Taylor Schilling (Orange Is the New Black (2013)); Aaron Sorkin; Mike Lawrence.

Steve Harvey (Steve Harvey (2012)); Robin Lord Taylor (Gotham (2014)). Also: Elle King performs.

Shaquille O'Neal; Eddie Redmayne (The Theory of Everything (2014)); Gary Vaynerchuk.

Keira Knightley (The Imitation Game (2014)); Al Michaels. Also: St. Lucia performs.

Russell Brand; Mayim Bialik (The Big Bang Theory (2007); Fahim Anwar.

John Goodman (The Gambler (2014)); Aasif Mandvi (Million Dollar Arm (2014)). Also: Interpol perform.

Actor Jason Sudeikis (Horrible Bosses 2 (2014)); actress Aubrey Plaza (Parks and Recreation (2009)).

Allison Williams ("Peter Pan Live"); Dan Patrick; Josh Beckerman.

For Thanksgiving, Seth welcomes his parents Larry Meyers and Hilary Meyers and his brother Josh Meyers.

Martin Freeman (The Hobbit: The Battle of the Five Armies (2014)); Eliza Coupe (Benched (2014)). Also: The Eeries perform; Bob Mould sits in with the 8G Band.

Cameron Diaz (Annie (2014)); Josh Radnor (How I Met Your Mother (2005)); journalist Richard Engel. Also: Bob Mould sits in with The 8G Band.

Mark Wahlberg (The Gambler (2014)); Diane von Fürstenberg; Kyle Dunnigan. Also: Bob Mould sits in with the 8G Band.

Rapper 50 Cent (Power (2014)); Patricia Clarkson (Annie (2014)). Also: James Bay performs.

James Corden (Into the Woods (2014)); Vanessa Bayer (Saturday Night Live (1975)); Planet Hollywood CEO Robert Earl.

Bill O'Reilly (The Factor (1996)); Krysten Ritter (Big Eyes (2014)). Also: Jungle perform.

Christoph Waltz (Big Eyes (2014)); Uzo Aduba (Orange Is the New Black (2013)); comic Greg Warren.

Anna Kendrick (Into the Woods (2014)); Timothy Spall (Sucker (2015)); Martha Stewart.

Jessica Lange (Wild Oats (2016)); Molly Sims; Roger Bennett. Also: Maya Rudolph sits in with the 8G Band.

Jane Lynch (Glee (2009)); Lucy Hale (Pretty Little Liars (2010)). Also: Haerts perform.

Matt LeBlanc (Episodes (2011)); Patton Oswalt (The Goldbergs (2013)).

Kristin Chenoweth (The Boy Next Door (2015)); Casey Wilson (Marry Me (2014)); Tony Danza. Also: Brandy Clark performs.

Michael Strahan (Live with Kelly and Mark (1988)); Olivia Munn (The Newsroom (2012)); Mark Duplass and Jay Duplass.

Bill Clinton; Carrie Brownstein. Also: Mali Music performs.

Kristen Stewart (Still Alice (2014)); Andrew Rannells (Girls (2012)); comic Phoebe Robinson.

Don Cheadle (Avengers: Age of Ultron (2015)); Ruth Wilson (The Affair (2014)). Also: Night Terrors of 1927 perform.

Lauren Graham (Parenthood (2010)); Rainn Wilson (Backstrom (2015)); Brian Michael Bendis.

Jennifer Lopez (The Boy Next Door (2015)); Nick Kroll (Kroll Show (2013)). Also: Lupe Fiasco performs.

Felicity Jones (The Theory of Everything (2014)); former NFL player Hines Ward; comic Sebastian Maniscalco.

John Oliver; Mike Greenberg and Mike Golic (Mike & Mike (2006)). Also: Kid Ink performs with Elle Varner.

Debra Messing (The Mysteries of Laura (2014)); comedian Horatio Sanz; chef Mario Batali.

Glenn Close (Anesthesia (2015)); Gabrielle Union (With This Ring (2015)). Also: J. Mascis.

David Duchovny (Aquarius (2015)); models Candice Swanepoel and Lily Aldridge; Brooks Wheelan (Better Off Single (2016)).

Bobby Moynihan (Sisters (2015)); Eugene Levy and Dan Levy (Schitt's Creek (2015)). Also: The Bots perform.

Sienna Miller (American Sniper (2014)); Tracee Ellis Ross (Black-ish (2014)); writer Brian Koppelman.

William H. Macy (Blood Father (2016) and Shameless (2011)); basketball analyst Kenny Smith. Also: The Districts perform.

Kevin Costner (McFarland, USA (2015)); Portia de Rossi (Scandal (2012)); Westminster Dog Show announcer David Frei with some dogs.

Wanda Sykes (Alpha House (2013)); Angie Harmon ("Rizzoli and Isles"). Also: Two Gallants perform.

Matthew Perry (The Odd Couple (2015)); Taraji P. Henson (Empire (2015)); Anders Holm (Workaholics (2011)).

Kathy Griffin (Fashion Police (2002)); Peter Sarsgaard (The Slap (2015)). Also: The Mavericks perform.

Zachary Quinto (The Slap (2015)); Mae Whitman (The DUFF (2015)); fashion designer Carolina Herrera.

Mary J. Blige; Stephen Amell (Arrow (2012)). Also: MisterWives perform.

The cast of Parks and Recreation (2009).

Christina Aguilera; Colin Quinn (Trainwreck (2015)); Kurt Braunohler (Bob's Burgers (2011)).

Will Forte (The Last Man on Earth (2015); Ellie Kemper (Unbreakable Kimmy Schmidt (2015)). Also: Sleater-Kinney perform.

Kelly Ripa (Live with Kelly and Mark (1988)); Lee Daniels (Empire (2015)). Also: Echosmith perform; Kate Pierson sits in with the 8G Band.

Tom Selleck (Blue Bloods (2010)); Anne Heche (Dig (2015)); author Marlon James. Also: Kate Pierson sits in with the "8G Band".

Kenneth Branagh (Wallander (2008)); Felicity Huffman (American Crime (2015)). Also: Purity Ring perform; Kate Pierson sits in with the "8G Band".

Jada Pinkett Smith (Gotham (2014)); Ginnifer Goodwin (Once Upon a Time (2011)); Robert Smigel. Also: Kate Pierson sits in with the "8G Band".

Keri Russell (The Americans (2013)); Sen. Ted Cruz. Also: Smallpools perform.

Shailene Woodley (The Divergent Series: Insurgent (2015)); Jason Biggs ("The Heidi Chronicles"); filmmaker Alex Gibney (Steve Jobs: The Man in the Machine (2015)).

Lena Dunham (Girls (2012)); sportscaster Erin Andrews (Dancing with the Stars (2005)). Also: Tove Styrke performs.

Jay Leno; Sara Foster and Erin Foster (Barely Famous (2015)); comedian Seaton Smith (Mulaney (2014)).

Jesse Tyler Ferguson (Modern Family (2009)); Christina Hendricks (Mad Men (2007)). Also: Charles Hamilton and Rita Ora perform.

Ben Stiller (Workaholics (2011)); Elisha Cuthbert (One Big Happy (2015)); journalist Chris Hayes.

Jeremy Piven (Mr Selfridge (2013) and Entourage (2015)); David Benioff and Daniel Weiss. Also: Marina Lambrini Diamandis (aka Marina and the Diamonds) perform.

Kelsey Grammer (Killing Jesus (2015)); Paula Pell; The Count.

Nathan Lane (Modern Family (2009)); Kristen Schaal (The Last Man on Earth (2015)). Also: Børns perform.

Kevin Bacon (The Following (2013)); Chris D'Elia (Undateable (2014)); chef Eric Ripert.

Ludacris (Furious 7 (2015)); Charlie Cox (Daredevil (2015)). Also: Dead Sara perform.

Jesse Eisenberg (The End of the Tour (2015)); Rob Huebel (Childrens Hospital (2008)). Also: Years and Years perform.

Kit Harington (Game of Thrones (2011)); musician Adam Horovitz (While We're Young (2014)). Also: The Mountain Goats perform.

Jon Cryer; Kat Dennings (2 Broke Girls (2011)); restaurateurs Michael Chernow and Daniel Holzman.

Pharrell Williams; Oscar Isaac (Ex Machina (2014) and Mojave (2015)). Also: Delta Rae perform.

Taraji P. Henson (Empire (2015)); Carice van Houten) (Game of Thrones (2011)); comic Keith Alberstadt.

Helen Mirren (Woman in Gold (2015)); Lindsey Vonn. Also: Buzzcocks perform; Jeremy Gara sits in with the 8G Band.

Ethan Hawke (Good Kill (2014)); Kumail Nanjiani (Silicon Valley (2014)). Also: Dwight Yoakam performs; Jeremy Gara sits in with the 8G Band.

Blake Lively (The Age of Adaline (2015)); Gina Rodriguez (Jane the Virgin (2014)). Also: Jessie Baylin performs; Jeremy Gara sits in with the 8G Band.

Russell Crowe (The Water Diviner (2014)); Seann William Scott (Just Before I Go (2014)); Emily Heller. Also Jeremy Gara sits in with the 8G Band.

James Spader (Avengers: Age of Ultron (2015)); Jane Krakowski (Unbreakable Kimmy Schmidt (2015)). Also: The Wombats perform; Jack Antonoff sits in with the 8G Band.

John Cleese (Monty Python: The Meaning of Live (2014)); Linda Cardellini (Welcome to Me (2014) and Avengers: Age of Ultron (2015)); Barney Frank; Jack Antonoff sits in with the 8G Band.

Chelsea Handler (Chelsea Lately (2007)); John Slattery (Mad Men (2007)). Also: Alejandro Rose-Garcia performs.

Cobie Smulders (Avengers: Age of Ultron (2015)); Andre Braugher (Brooklyn Nine-Nine (2013)); comedian Phil Hanley.

Lily Tomlin (Grace and Frankie (2015)); Abigail Breslin (Scream Queens (2015)); comic Chris Distefano.

Jack Black (The D Train (2015)); presidential candidate Carly Fiorina; baseball player Pedro Martinez.

Fashion journalist Anna Wintour; musician Willie Nelson. Also: Twin Shadow performs.

Josh Hartnett (Penny Dreadful (2014)); Mika Brzezinski and Joe Scarborough (Morning Joe (2007)). Also: Benjamin Booker performs.

Louis C.K. (Louie (2010)); Sharon Osbourne (The Talk (2010)). Also: Joy Williams performs.

Jane Fonda (Grace and Frankie (2015)); Leslie Jones (Saturday Night Live (1975)); Kay Cannon (Pitch Perfect 2 (2015)).

Matt Dillon (Wayward Pines (2015)); Tatiana Maslany (Orphan Black (2013) and Woman in Gold (2015)). Also: Will Butler performs.

Anna Kendrick (Pitch Perfect 2 (2015)); Thomas Middleditch (Silicon Valley (2014)); Tom Scharpling and Jon Wurster (The Best of The Best Show).

Mariska Hargitay ("Law and Order: Special Victims Unit" (1999)); Chelsea Peretti (Brooklyn Nine-Nine (2013)). Also: Father John Misty performs; Elle King sits in with The 8G Band.

Eric Stonestreet (Modern Family (2009)); Mike Epps (Bessie (2015)); comic Nick Swardson (Nick Swardson: Taste It (2015)). Also: Elle King sits in with The 8G Band.

NBA player Dwyane Wade; Kellan Lutz (Bullseye (2015)). Also: Allen Stone performs; Elle King sits in with The 8G Band.

Heidi Klum (America's Got Talent (2006)); Richard Lewis (book "Reflections from Hell"); comic book writer Matt Fraction.

Rose Byrne (Spy (2015)); senator and presidential candidate Bernie Sanders. Also: Brett Eldredge performs; Jon Theodore sits in with The 8G Band.

Melissa McCarthy (Spy (2015)); Robert Duvall (Wild Horses (2015)); author Hanya Yanagihara ("A Little Life"). Also: Jon Theodore sits in with The 8G Band.

Alan Cumming (The 69th Annual Tony Awards (2015)); Alicia Vikander (Testament of Youth (2014)). Also: Clean Bandit and Jess Glynne perform; Jon Theodore sits in with The 8G Band.

Elisabeth Moss (Mad Men (2007), play "The Heidi Chronicles"); Cat Deeley (So You Think You Can Dance (2005)); comic Gina Brillon. Also: Jon Theodore sits in with The 8G Band.

Edie Falco (Nurse Jackie (2009)); comedian George Wallace. Also: Fall Out Boy performs; Jon Theodore sits in with The 8G Band.

Jerry Seinfeld (Comedians in Cars Getting Coffee (2012)); New Yorker editor David Remnick is interviewed and presents live versions of the magazine's cartoons. Also: Jon Theodore sits in with The 8G Band.

Taran Killam (Saturday Night Live (1975)); Hugh Dancy (Hannibal (2013)). Also: Kacey Musgraves performs; Jon Theodore sits in with The 8G Band.

Molly Shannon (Me and Earl and the Dying Girl (2015)); Tip 'T.I.' Harris ("T.I. and Tiny: The Family Hustle" (2011)); Matt Lucas (Pompidou (2015)). Also: Jon Theodore sits in with The 8G Band.

Lifestyle expert Martha Stewart makes barbecue hors-d'oeuvres; Laura Prepon (Orange Is the New Black (2013)). Also: Jamie XX performs; Chad Smith sits in with The 8G Band.

Amanda Seyfried (Ted 2 (2015)); director Judd Apatow (Trainwreck (2015), book "Sick in the Head"); chef Katie Lee ("Endless Summer Cooking") makes lobster Reubens and watermelon rum punch. Also: Chad Smith sits in with The 8G Band.

Mindy Kaling (Inside Out (2015)); Adam Scott (The Overnight (2015)). Also: Tove Lo performs; Chad Smith sits in with The 8G Band.

Taylor Schilling (The Overnight (2015), Orange Is the New Black (2013)). Also: James Taylor performs and is interviewed; Chad Smith sits in with The 8G Band.

Maya Rudolph (The Spoils Before Dying (2015)); Joe Manganiello (Magic Mike XXL (2015)). Also: Belle and Sebastian performs.

Actor Colin Farrell (True Detective (2014)); actor Matt Bomer (Magic Mike XXL (2015)); Maria Bartiromo (Mornings with Maria Bartiromo (2014)).

Channing Tatum (Magic Mike XXL (2015)); Laverne Cox (Orange Is the New Black (2013)). Also: Desaparecidos performs; Seth and Amy Poehler comment on women's sports.

Seth MacFarlane (Ted 2 (2015)); Bella Thorne (Scream: The TV Series (2015)); Greg Poehler (Welcome to Sweden (2014)).

Michael Douglas (Ant-Man (2015)); Jim Gaffigan (The Jim Gaffigan Show (2015)). Also: Nate Ruess performs.

Ben Kingsley (Tut (2015)); Mike Birbiglia (Trainwreck (2015)); senator and presidential candidate Lindsey Graham (R-S.C.).

Paul Rudd (Ant-Man (2015)); Paula Pell and James Anderson (Hudson Valley Ballers (2013)).

Amy Schumer (Trainwreck (2015)); Pablo Schreiber (The Brink (2015)). Also: Anderson East performs.

Ryan Seacrest (Knock Knock Live (2015)); Vanessa Bayer (Trainwreck (2015)); Chris Gethard (The Chris Gethard Show (2015)). Also: David Lovering sits in with The 8G Band.

Adam Sandler (Pixels (2015)); Margaret Cho (Margaret Cho: PsyCHO (2015)). Also: Modest Mouse performs; David Lovering sits in with The 8G Band.

Rachel Maddow (The Rachel Maddow Show (2008)); Cara Delevingne (Paper Towns (2015)). Also: Neon Trees performs; David Lovering sits in with The 8G Band.

Jake Gyllenhaal (Southpaw (2015)); Ashley Benson (Pixels (2015), Pretty Little Liars (2010)); satirical activists Andy Bichlbaum and Mike Bonanno (The Yes Men Are Revolting (2014)); David Lovering sits in with The 8G Band.

Matt Lauer and Savannah Guthrie (Today (1952)); Carli Lloyd, captain of the World Cup champion U.S. women's soccer team. Also: Lord Huron performs; Brad Wilk sits in with The 8G Band.

Billy Eichner and Julie Klausner (Difficult People (2015)); Joel Edgerton (The Gift (2015)). Also: Vintage Trouble performs; Brad Wilk sits in with The 8G Band.

Ed Helms (Vacation (2015)); Alison Bechdel (graphic memoir "Fun Home"). Also: A performance from the Tony-winning Broadway musical "Fun Home", adapted from Bechdel's memoir; Brad Wilk sits in with The 8G Band.

Christine Baranski (The Good Wife (2009)); Colin Jost (Saturday Night Live (1975) and Staten Island Summer (2015)); Michael Kosta performs stand-up. Also: Brad Wilk sits in with The 8G Band.

Miles Teller (Fantastic Four (2015)); Jessica St. Clair and Lennon Parham (Playing House (2014)). Also: Christine and the Queens performs; Brad Wilk sits in with The 8G Band.

Craig Robinson (Mr. Robinson (2015)); Michael Ian Black (The Jim Gaffigan Show (2015) and Wet Hot American Summer: First Day of Camp (2015)); chef Christina Tosi makes milkshakes. Also: Brad Wilk sits in with The 8G Band.

Jason Segel (The End of the Tour (2015)); Michael B. Jordan (Fantastic Four (2015)). Also: Big Sean performs; Brad Wilk sits in with The 8G Band.

Ice-T and Coco Austin ("Ice and Coco"); Lucy Hale (Pretty Little Liars (2010)); Andy Daly (Review (2014)). Also: Brad Wilk sits in with The 8G Band.

Winona Ryder (Show Me a Hero (2015)); Colin Quinn (off-Broadway show "The New York Story", book "The Coloring Book"). Also: Beirut performs.

Anderson Cooper (Anderson Cooper 360° (2003)); Greta Gerwig (Mistress America (2015)); Tig Notaro (Tig Notaro: Boyish Girl Interrupted (2015)).

Connie Britton (American Ultra (2015)); Rita Ora (album "Body on Me", Southpaw (2015)). Also: Unknown Mortal Orchestra performs.

Kristen Wiig (The Diary of a Teenage Girl (2015)); Tituss Burgess (Unbreakable Kimmy Schmidt (2015)); David Simon (Show Me a Hero (2015)).

Bill Hader (Documentary Now! (2015)); Shepard Smith (Shepard Smith Reporting (2013)). Also: Blue Jean Committee performs; Jimmy Chamberlin sits in with The 8G Band.

Zac Efron (We Are Your Friends (2015)); Joe Piscopo (Saturday Night Live (1975)). Also: Chris Stapleton performs; Jimmy Chamberlin sits in with The 8G Band.

Keegan-Michael Key (Key and Peele (2012)); Tony Hale (American Ultra (2015)). Also: MS MR performs; Jimmy Chamberlin sits in with The 8G Band.

Matthew Broderick (Dirty Weekend (2015)); WWE champion John Cena (Trainwreck (2015)); Brian Quinn, Sal Vulcano, James Murray and Joe Gatto (Impractical Jokers (2011)). Also: Jimmy Chamberlin sits in with The 8G Band.