It's been a busy week in the world of celebrity fitness. But then again, when is it not? You know you love to get the scoop on what workouts and diets are transforming the stars, and this is just the place to peek at all the hot bodies from the past week! Click on the famous faces above to see which ones are making headlines.

While the show isn't exactly getting rave reviews, the starlets of the new 90210 are certainly getting plenty of attention, and AnnaLynne McCord is definitely garnering her fair share by spilling some secrets about how she stays so incredibly skinny.

Last month she said that she indulges in chocolate (only occasionally, of course), and now she's talking about how easily she gets bored with exercise. However, she's found something that hold her interest -- belly dancing. "It's a workout while I'm actually being challenged and entertained. I shake it a little," says the actress, adding, "That's really fun. If you're like me and you have the attention span of, like, two seconds, belly-dancing is good."

There are plenty of alternatives to spending 30 minutes on a treadmill -- I've found myself challenged by all kinds of classes, from hip hop to step aerobics. What's the most fun you've ever had working out? And keep it clean.

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Kim Kardashian mentioned that she stays thin with sleep and water ... but Jacki thinks she might be leaving a little something out of the equation.

Working in a workout is tough for many of us, but what about actresses who have to be on set at 6 a.m.? This Lipstick Jungle actress is sharing her tips for staying fit despite a hectic schedule.

Bar Rafaeli is well-known for being the on again, off again love interest of Leonardo DiCaprio, but that's not what keeps landing her modeling gigs. Find out how she keeps her legs in sexy shape here.

If skinny girls can eat chocolate and maintain their weight, then surely we not-so-willowy ones can too. I know, we have no idea what these gals do to keep pounds from packing on. Still, if chocolate is permitted by this crew, then why not enjoy a bite yourself now and then.

Now and then are the key words. Just ask 90210 actress AnnaLynne McCord, who enjoys just a taste in the name of portion control.

McCord's taste comes in the form of the new Dove chocolate bars, says PEOPLE magazine. They come in three individually wrapped portions, each with 180 calories and available in six flavors -- check out a picture of the $1.99 treat here. Eat just an ounce of dark chocolate to regulate your blood pressure and increase blood flow to the heart -- Grey's Anatomy star Chandra Wilson does -- because that's why we all eat chocolate, right? Yeah. That's it.

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