My cover of Pinkie Pie's laughter song from the FiM pilot.

Background track used is from: https://www.youtube.com/watch?v=HOsBXlQHWdE

Found the art in the video by browsing random drawfriends from the past couple of days from EQD.  It's from:  http://kittehmeow.deviantart.com/art/Boing-370882513