When a song becomes extremely popular, the interwebs go wild with everyone else's interpretations, from cover versions to dances to spoofs.
Korean pop/rap star Psy has hit the big time with Gangnam Style. The song is everywherePsy taught Ellen DeGeneres and Britney Spears how to dance like in the video, even Navy midshipmen and cadets from the U.S. Military Academy Corps of Cadets have weighed in with their versions.
These are all great fun, but this is my favorite. A cappella singing group Pentatonix, who won the last season of The Sing-Off on television, have weighed in with their version. There's not as much cheesy dancing, but it's fun all the same.