Ever wondered how your fave celebs keep slim and toned?

Girls, if you want to get that rockin’ body, you’ve got to workout! Let’s check out how these ladies get into amazing shape…

17 Says: How in the world did Vanessa Hudgens get those amazing flat abs? Why, with Piloxing of course! What’s that you may ask? If you haven’t heard, Piloxing is a mix of pilates and boxing. It helps tones your arms, legs, butt and abs—now that’s what you call a total workout! Did we also mention that Vanessa and Ashley Tisdale sometimes practice Piloxing together? Sure sounds like fun.

17 Says: The Hills star Audrina Patridge discovered a new workout called Reebok's Jukari Fit-to-Fly. It’s such a fun way to stay fit that she’s sticking to this fitness routine. The trapeze-based workout is said to give you the sensation of flying...while strengthening and lengthening your body through cardio, strength, balance and core training.

17 Says: If Beyoncé Knowles managed to hula-hoop her way to great abs, that means you can too! Looks like the forgotten childhood pastime has made a comeback. Psst...just one minute of hula-hooping can burn as many calories as running an eight-minute mile. The best part? Its circular trunk movements work your abdominal muscles, hips and waistlines.

17 Says: When New Moon star Ashley Greene knew that her Pilates and taekwondo routines wouldn’t be enough for her fight scenes in Eclipse and Breaking Dawn, she chose to prep up with MMA or Mixed Martial Arts. It’s no surprise all that intense kicking and punching gave her some seriously super-toned limbs!

17 Says: Wanna know Hayden Panettiere's get fit secret? She goes for a Pilates Plus workout—where traditional Pilates moves are taken to a new level by adding light weights. This new-school regime is designed to strengthen, tighten, and tone the body quickly and safely!

Main picture from Stockexchange, other picture from moono.com