Eddie Murphy tried the college thing for a little while. Bu three months in, he auditioned for a role on Saturday Night Live. He landed the role and several others. 

Chris Rock didn't end up attending college. In fact, he never ended up making it to college. Instead, he decided to drop out and later earned his GED. Rock then worked menial jobs at various fast food restaurants. 

After graduating from high school, Jilly from Philly attended Temple University while working two jobs at the same time. She was studying to become an English teacher. However, she decided a teaching career wasn't for her and decided to take up a career in singing. 

Oprah Winfrey almost finished college. She left although she only needed one more credit to graduate.

Jay Z didn't end up finishing high scoool, but he encourages others to through his Shawn Carter Foundation.