Annette Funicello, the best-known Mouseketeer from the original 1950s "Mickey Mouse Club," went on to have a successful film career. She passed away April 8, 2013 at age 70.
Following three appearances on "Star Search," but well before "Baby... One More Time," Britney Spears was a Mouseketeer from 1993 to 1995.
Back in his curly-haired days, Justin Timberlake was a regular on "The All New Mickey Mouse Club" from 1993 to 1995.
Before she was a "Genie in a Bottle," Christina Aguilera was a Mouseketeer from 1993 to 1995.
Ryan Gosling joined Spears, Timberlake and Aguilera on "The All New Mickey Mouse Club" from 1993 to 1995.
Jimmie Dodd, the “Big Mousketeer” of the original “Mickey Mouse Club,” with Mousketeer Cubby O’Brien at Cubby’s 11th birthday party in Hollywood. (Sept. 4, 1957)
Boy bander JC Chasez joined fellow 'NSYNC member Justin Timberlake on "The All New Mickey Mouse Club" from 1991 to 1995.
Best known as "Felicity" and currently starring on FX's "The Americans," Keri Russell was a member of "The All New Mickey Mouse Club" from 1991 to 1993.
Lisa Whelchel was a Mouseketeer in 1977 and went on to star as Blair Warner on the hit TV series "The Facts of Life."
Rhona Bennett of the late '90s/early 2000s R&B girl group En Vogue was a member of "The All New Mickey Mouse Club" from 1991 to 1995.
Ginny Tyler, a head Mouseketeer in the 1950s who went on to become a voice actress, died July 13, 2012 at a nursing home in Issaquah, Wash. She was 86.