Kelly Rowland's Ab Workout
"This move is amazing for your obliques!" says Jeanette Jenkins, whose workout DVD Sexy Abs, features Rowland, 31. Place your left forearm on the mat, elbow bet at a 90-degree angle directly under your shoulder. Pull your abs in and lift your hips so you're balancing in a straight line on your left foot and arm. Slowly lower. Repeat 15 reps on each side.