Reese Witherspoon is one of those celebs who loves to work out (and it shows!) When she's not jogging or working outside the gym, according to the latest issue of Shape magazine, she takes YogaHop classes. These 90-minute workouts incorporate yoga poses with booming hip-hop, rock, and pop music. The class feels more like a dance party than an exercise routine, yet it's still as spiritually uplifting as traditional yoga classes. For the first 60 minutes, students flow from pose to pose to increase their heart rates, holding postures for a few breaths each. Then the last part of the class focuses on stretching for longer periods of time to increase flexibility. The reason this class helps you tone up is because you're encouraged to do sets of push-ups between poses.
If you're looking for a way to kick it up a notch on your mat, classes are offered at the YogaHop studio in Santa Monica, CA for $17 a pop.