Beginner: Ball Squat
Standing with feet shoulder-width apart, place a stability ball between your lower back and a wall, hands on hips.
Bend your knees 90 degrees, making sure they don't go past your toes.Return to start and complete 12 times.
Intermediate: Side-to-Side Squat
Stand with right side facing a step, hands on hips, right foot on top, left foot on floor.Bend knees 90 degrees. Stand up and push off with right foot as you hop onto other side of step.Repeat on left side, alternating 10 times.
Advanced: Crab Squat
Stand with feet slightly wider than shoulder-width apart and turned out 45 degrees.Bend knees 90 degrees into a squat, keeping torso upright and knees over ankles.
From that position, step left foot to the right, walking sideways.Take about 10 steps to the right and repeat on the left.
Brazillian butt Lift
Stand with feet slightly wider than shoulder-width apart, arms at sides, toes turned out.Tuck tailbone under and contract glutes.Lower body into a plié squat as low as you can go without allowing knees to creep past toes.
Simultaneously raise arms to shoulder height in front of body, palms down. Hold for 2 seconds, then return to starting position.After 20 reps, pulse at the bottom for 20 seconds.
pictures and exercises from fitnessmagazine.com
exercises to tone your butt