Justin and Cameron go Pop!

Britney Spears, take note – Justin Timberlake is back on the market.

A report on Janet Charlton's Hollywood (http://www.janetcharltonshollywood.com/) claims that Justin Timberlake called it quits with longtime girlfriend Cameron Diaz last week (ironically, right about the time Britney was spilling her own beans to Dateline). Justin allegedly broke up with Cameron as both were preparing to leave town, he to start touring to support his soon-to-be-released album and she to do some movie work. Insiders claim that Cameron is distraught.

"They were a great, well matched couple in many ways but Cameron (at 33) is ready to settle down and wants a commitment, even though she might not admit it. Justin is only 24 and he's been with Cameron for three years. He hasn't had a chance to sow his wild oats yet," a supposed insider divulged. "A few weeks back, Justin and his buddies took off for a few days in Las Vegas and Cameron went chasing after him. She was just too clingy." So maybe the break up was Justified after all.