What is that rap song that starts out going yeah yeah yeah and a guy sings it?

The song is called Mercy and it's by Duffy

It goes yeah yeah yeah 4 times

I love you, but I gotta stay true. My morals got Me on my knees, I beg you please stop playing Games.

You got me beggin you for mercy.

Edit: Actually I think the song you are looking for is "Uncontrollable Urge" by Devo. I only know cause I've been looking too and I know how hard it is to find out about this song.