My Little Pony: Equestria Girls - Rainbow Rocks Song: Lets Have a Battle (Comparison between the EXCLUSIVE short & the final version on the movie) Watch .\rbr\rbrMy Little Pony: Equestria Girls - Rainbow Rocks Song: Lets Have a Battle (Of the Bands) (Blu-Ray) Watch in 720p!\rbr\rbrPreviewAlbum version and Movie version of Battle from My Little Pony: Equestria Girls Rainbow Rocks. Battle Movies (Website),Lets Have A Battle (Author) .\rbr\rbrLets Have a Battle (of the Bands) from the movie My Little Pony: Equestria Girls - Rainbow Rocks based on the television show My Little Pony: Friendship is .