Usher's words or Homer's?

Usher has been accused of ripping off cartoon character Homer Simpson in his smash hit 'OMG'.

Angry fans of The Simpsons are suggesting that the 32-year-old singer has copied the words of Homer during the episode Dude, Where's My Ranch?
 
Homer is heard saying the line: "Christmas in December, wow wow wow. Give me tons of presents, now now now."

And in Usher's hit OMG, he sings: "Honey got a booty like pow, pow, pow. Honey got some boobies like wow, oh wow."

A fan has made a mash-up on YouTube that compares the two songs, after a radio show in the US spotted the similarities.

Check it out below and let us know what you think. Coincidence? Or something more?