Can Music Help You Get In Shape? These 5 Fun Fitness Classes Prove It

News you can use: There's now scientific evidence that your Ke$ha-heavy soundtrack is helping your efforts toward a better bikini body. In a new study from Brunel University, researchers found that swimmers exposed to a soundtrack during the 200-meter freestyle swam significantly faster than those who didn't listen to music and reported a jump in their motivation to work out. Other studies have shown similar results for runners, cyclists, and more who move to fast-tempo tunes. Who can argue with...