All pony voices are sentence mixed together with the song. Check out the link to the "no background music" version, if you wanna hear the difference.

No Background Music: https://www.youtube.com/watch?v=8mADWIr1kj0
Original song: http://www.youtube.com/watch?v=V5bYDhZBFLA
MP3: http://www.mediafire.com/?awv6aj8vb25oz5y