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.