squats:

Adrian recommends the following workout plan ONCE A WEEK to get a bigger butt with squats (then take every 4th week off). Try to use heavier weights each time you do a new set, and also try to use heavier weights each new week you do the workout. Always use a spotter when using heavier weights.

 * 1-2 sets of 8 reps (use light-to-moderate weight)
 * 1 set of 5-8 reps (use moderate-to-heavy weight), rest 2-4 minutes
 * 1 set of 5-8 reps (use moderate-to-heavy weight), rest 2-4 minutes
 * 1 set of 5-8 reps (use moderate-to-heavy weight), rest 5-10 minutes
 * 1 set of 3-5 reps (use moderate-to-heavy weight), rest 2-4 minutes
 * 1 set of 3-5 reps (use moderate-to-heavy weight), rest 2-4 minutes
 * 1 set of 3-5 reps (use moderate-to-heavy weight)

Note: Remember that you don't need to use weights as heavy as in the video!

If you can't do these squats with a barbell, try dumbbell squats!