Renee Zellweger
The Bridget Jones's Diary star is actually quite graceful despite her bumbling character in that film. Renée Zellweger attended Katy High School in Katy, Texas, and is still involved in the gymnastics aspect of cheerleading. She once showed off her moves for The Tonight Show with Jimmy Fallon.
Stacy Keibler
Before she was a WWE wrestler, she was a professional cheerleader for the Baltimore Ravens. In 1999, she switched over to the WCW ring, and in 2001, she became a pro with WWE. Needless to say, don't ever tell her cheerleading isn't a sport.