Justin Timberlake stepped in to replace will.i.am when Macy Gray found herself without a producer. The singer was scheduled to work with The Black Eyed Peas star but had to make do with Timberlake after her first choice became too busy.

She says, "Will and I were doing my album, then he got really, really busy with The Black Eyed Peas touring. Then he got really in demand as a producer and had a lot of opportunities he didn't want to turn down. So I was kind of forced to work with other people because he was so busy. That is how I ended up going to the studio with Justin; it wasn't in the original plan but it worked out great."

-Justin Timberlake Pictures
-Macy Gray Pictures

(This news article provided by World Entertainment News Network)