A YouTube crew thinks they have proof positive that Usher ripped off Homer Simpson.

A Mississippi radio show discovered that Usher's "OMG" is strikingly similar to a Homer song from 2003—except that Simpson sings about Christmas presents 'sted of his baby's booty.

Homer croons, "Christmas in December/Wow wow wow/Gimme tons of presents/Now now now," in the episode Dude, Where's My Ranch?

Usher's version? "Honey got a booty like/Pow pow pow/Honey got some boobies like/Wow oh wow."

Check out the mash-up video.