Works legs, butt, and core
Stand on your right foot with left knee bent, and hold a dumbbell in each hand in front of shoulders, palms facing each other. Squat as you reach left hand toward right toes. Rise up, lifting left arm in an arc out to the left and overhead as you raise left knee to hip height in front of you. Return to starting position. Do 10 reps, then switch sides to complete set.