Reupload for posterity. Original by AtticusTheAbridged.

Originally uploaded March 31, 2011:
www.youtube.com/watch?v=xSrBbsSu4XI

Sourced from the Wayback Machine:
https://web.archive.org/web/20120521232039/https://www.youtube.com/watch?v=xSrBbsSu4XI

Featured on Equestria Daily:
https://www.equestriadaily.com/2011/03/bud-light-style-pony-commercial.html