JOSH. FUCKING. GROBAN. HOLY SHIT.

I'm sure you all remember when Sarah Silverman admitted that she was fucking Matt Damon.

Now Jimmy Kimmel has a confession of his own.

Ten cool points if you can name all 21 celebrity cameos. Not counting Ben and Jimmy, of course.

If I ever find uncensored versions, I am ripping the audio and rocking out.

-Luce