She wasn't lovin' it

Macy Gray didn't want to work with Justin Timberlake, it turns out:

"Will [I Am] and I were doing my album, then he got really, really busy with the Black Eyed Peas touring," she explained. "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."

So, then, Timberlake was a plan B, and Will I Am's faith in Gray was so high that as soon as someone called offering three weeks as pigman up Home Farm (or something) he was off. But it "all worked out great" - so great Gray already sounds like someone distancing themselves from the finished product.