Get a toned booty like a ballerina with this classic dance move. Lightly grasp a bar in front of you at about waist height. Keeping your left leg straight, lift your right leg up directly behind you until you feel a squeeze in your butt. Pulse your lifted leg up to the sky 10 times before lowering. Tip: The bar is just there for balance (falling on wood chips can get sliver-y!) so don't use it if you don't need it.