If you're looking for a move that will get your butt "tight and right," this is it, says fitness expert Lacey Stone, who uses it on her Extreme Bootcamp app for iPhone and iPad.
What it does
The squat with a lateral kick works your glutes, quadriceps and hamstrings, and done quickly enough, it gets your heart rate up to torch calories too.
What to do
From a standing position with feet shoulder-width apart, lower into a squat, with your weight in your heels, making sure your knees don't extend past the tips of your shoes and your back isn't hunched over.
Come up to a stand, squeezing your butt and lifting your left leg out to the side, touching it with your left arm. Lower back into the squat, and raise your body up again, lifting your right leg out to the side to touch with your right arm. Continue to repeat to each side.
To make the move more challenging, try it at a faster pace or with ankle weights. You also can add a jump squat between kicks to make it more of a calorie burner.
Do three sets of 12 squat kicks to each side.