Check out Toon Critic Y2K's Channel!
http://www.youtube.com/user/ToonKriticY2K

"Wonderbolt": http://www.youtube.com/watch?v=-izLkasbzG0
"My Little Pony, Rock Theme":http://www.youtube.com/watch?v=d-JzRfgFmW0

"She's Baaaaaaack!:http://masemj.deviantart.com/art/She-s-Baaaaaaack-427773656
"Not Derpy at All": http://azizthewazon.deviantart.com/art/Not-derpy-at-all-427789338
"Derpy Hooves Standing": http://chubble-munch.deviantart.com/art/Derpy-Hooves-Standing-302431433
"A Winner is You": http://masemj.deviantart.com/art/A-Winner-Is-You-428066567