If you have access to a gym, this workout program, although challenging, is very good for toning legs and glutes overall. I do it once a week.
http://www.muscleandfitnesshers.com/training/legs/smoking-hot-legs#.UxUBxgn2N2w.email
If you don't have access to a gym, of course squats, lunges, hip thrusts, wall sits, kickbacks on all fours, and supermans will tone things pretty well.
The best one I think is the Brazilian butt lift workout.Google it.cheers
If you have YouTube just look up butt workouts or look up any workout app and they will usually give you a butt workout.
I just downloaded an app called Butt Trainer for my Android it looks very helpful