Twenty-three years ago, classmates from California's Santana High School performed the Broadway classic, "Annie." Now, with help from Broadway professionals, the cast returns to reprise the roles of their youth.

Twelve years after classmates from Saginaw High School in Ft. Worth, Texas performed the classic Disney musical "Beauty and the Beast," the cast returns to reprise the roles of their youth with the help of Broadway professionals.

The class of Flint, Michigan is 1992 reunite to perform "The Sound of Music."

28 years ago, a group of students from Hackensack, New Jersey performed their own rendition on "Grease." Now, they have to learn to work together again to perform an encore show one last time.

After 21 years, alumni reunite to re-stage their high school performance of "Annie Get Your Gun."

After 28 years, former classmates reunite to re-stage their high school performance of "Oklahoma!"

After 20 years, former high school students reunite for an encore performance of "Godspell."

After 35 years, former classmates reunite to re-stage their high school performance of "Pippin."

After 12 years, alumni reunite to re-stage their high school performance of "High School Musical."

After 44 years, former classmates reunite to re-stage their high school performance of "Anything Goes."

After 11 years, former classmates reunite to re-stage their high school performance of "Ragtime."