Song: Party Rock Anthem
Artists: LMFAO  ft. Lauren Bennett, GoonRock

Check out the original if you haven't seen it yet:
https://www.youtube.com/watch?v=KQ6zr6kCPj8

My Little Pony is owned and copyrighted by Hasbro.
My Little Pony: Friendship is Magic is developed for television by Lauren Faust.