The buzz around is that Jennifer Aniston might be dating musician John Mayer.

So, what caused the rumors??

Apparently, Jennifer was seen having lunch with the hot singer at a Miami restaurant that opened Friday afternoon just for them!

It’s not just that... they were also seen holding hands after a lengthy dinner, which really caused our gossip senses to talk about their on-going chemistry!

I must say it’s an unlikely match for them but you can’t deny the fact that Jennifer had dated even Vince Vaughn in her yesteryears. I think she’s like a good wine... gets better with age!

They seemed to be engaged in a very deep conversation according to reports.

“I can’t speculate on what kind of meeting it was but they looked happy and seemed to have a great time,” says Charles Bell, general manager of Michael’s Genuine Food & Drink in the Miami Design District, which opened its doors for the pair early at 3:30 p.m. for the 90-minute meal.

They were at a restaurant later on and were there until after midnight before returning to their hotel together.

Aniston,39, is in Miami these days, shooting the movie Marley & Me with Owen Wilson.

And John,30, might just be the guy to bring happiness in the dating life of the unstable actress.