Even if you have two left feet, turn on your CD player or put the iPod in its docking station, and start moving. Whether it's in your bedroom or your living room or a local club or studio, dancing is wonderful exercise.

In fact, aerobics as a form of exercise got started as dance, an offshoot of jazz dance (sort of like what the Rockettes do). Because you move quickly (even ballroom dancers dance relatively fast) and use all of your limbs, you burn a ton of calories dancing. The funny thing about dancing, too, is that all you really need is a sense of rhythm and an enjoyment of music — you can be good at it no matter what your size or shape.

Taking a dance class, whether it's ballet, belly-dancing, or swing dancing, can get you into shape and is a great way to be social. But you can also dance by yourself in your home with just the radio on.

Here's a list of different dance styles, their benefits, and their calorie-burning count for a moderate intensity for 30 minutes (keep in mind that most dance classes are at least 60 minutes):

• Ballroom dancing: Burns 150 calories an hour. Strengthens leg, shoulder, ab, arm, back, and glute muscles; increases flexibility. Improves concentration. Only increases heart strength if you do fast steps, such as swing dancing.

• Salsa dancing: Burns 170 calories an hour. Strengthens leg, shoulder, ab, arm, back, and glute muscles. Also increases flexibility. Strengthens the heart.

• Ballet: Burns 150 calories per hour. Strengthens leg, shoulder, ab, arm, back, and glute muscles. Also increases flexibility. You need concentration and stamina. Does not increase cardio power.

• Country line dancing: Burns 125 calories an hour. Strengthens leg, shoulder, ab, arm, back, and glute muscles.

• Disco dancing: Burns 175 calories an hour. Strengthens leg, shoulder, ab, arm, back, and glute muscles. Strengthens the heart.