If you've ever noticed the knockout bodies of 'Dancing With the Stars' professionals - or envied the once-plump Kelly Osbourne's ability to drop pounds quickly for the premiere of the show - Life & Style has a little advice, straight from the horses' mouths.

The magazine talked to various current and former stars of the hit dance competition for tips on staying in shape, on and off the dance floor. Read on for the celebrity diet magic that L&S has shared exclusively with PopEater.