It sounds improbable, but take a listen: Usher's new song "OMG" does have certain similarities to a song sung by Homer Simpson in a 2003 episode of "The Simpsons." A quick compare/contrast: Usher sings the words, "Honey got a booty like pow, pow, pow. Honey got some boobies like wow, oh, wow." Homer's lyrics are: "Christmas in December, wow, wow, wow. Give me tons of presents, now, now, now."
Thanks to the handy work of Y101 radio hosts, you can refer to the attached mashup and judge for yourself, and weigh in in the comments section. A rep for Usher hasn't yet responded to requests for comment.