After a handful of tabloids alleged that Justin Timberlake and Jessica Biel broke up, it now appears that J.T. has already moved on - back to his Shrek Forever After co-star Cameron Diaz.

Timberlake and Diaz were together for four years before breaking up, but the Shrek project has apparently brought them back together. It is believed the two remained friends after their separation, and reports say the relationship is heating up again.

It would certainly make things interesting if it turns out Jessica Biel and Justin Timberlake were still together during all of this - and if the rumors of Cameron Diaz and Yankees star Alex Rodriguez dating are true as well!

Justin Timberlake Pictures