On October 24, 2009 Britney's "3" became her third No. 1 hit on the Billboard 100, joining her debut single "...Baby One More Time" and "Womanizer." | Britney Spears

In 1989, Disney launched The All-New Mickey Mouse Club (MMC). The series featured many future stars, including Britney Spears, Ryan Gosling, Justin Timberlake, JC Chasez, Keri Russell, Rhona Bennett, and Christina Aguilera. The show ran until 1994. Here’s a look at the 1993 cast, did you watch it? | Disney History Channel