If you're looking for a new way to work the butt muscles, consider the glute kick with a dumbbell. This exercise is done from a kneeling position. To begin, place a dumbbell in the crease of your leg, just above the calf and below the hamstring. Once the dumbbell is secured behind your leg, kick your foot upward as far as you can. As you kick, try to emphasize the butt. Perform this exercise in a slow and controlled fashion.