Not everyone is born bouncing like Beyonce. Consider hiring a pro to teach you and your gang the latest moves. "This takes the pressure off people individually," Dr. Biali says. "Everyone is learning and making mistakes together, so each person feels less self-conscious." To score a top-notch teacher, ask your local gym or dance studio for a suggestion, or log on to dance-teachers.org. Had a great session? Bring your pro back for a weekly dance-off-the-pounds party.
If you can't swing an instructor or would rather keep things informal, pop in a DVD like Dance with Julianne: Just Dance! ($15; amazon.com) or Dancing with the Stars: Fat-Burning Cardio Dance ($15; amazon.com). These high-energy, easy-to-follow routines can help you blast fat and have lots of fun.
Use your Kinect or Wii to dance your way to a great shape: We're loving Zumba Fitness (for Kinect for Xbox 360, Nintendo Wii, and PlayStation Move for the PlayStation 3, $40 to $50; amazon.com), Just Dance 2 (for Nintendo Wii, $40; amazon.com), and Michael Jackson The Experience (for Nintendo Wii, $50; ubi.com). Keep the guest list small to keep your calorie burn superhigh.
Keep your heart pumping with the ultimate fat-blasting mix from New York City DJ Cheila Villarcheck it out here.