Rihanna unhappy with her thinner frame

Shara Purcell

Rihanna, who says she is down to a size zero, is not thrilled with her shrinking figure, and wants her old butt back! Find out how she ended up with her thinner bod. Plus, Tom Cruise says he isn't having more kids anytime soon, and Miley Cyrus is setting the record straight after being spotted in a pool with a man who wasn't her fiancé, Liam Hemsworth.

Check back weekdays at 12 p.m. PT

More Celebrity Features on Yahoo!: