Standup comedian, blogger, and sometimes singer John Mayer sure gets around. Yesterday everyone was saying that he must be dating Mandy Moore considering that they were spotted out to lunch together in NY. He had a whole night out bar hopping with Cameron Diaz, though, so that means they’re dating now:

Cameron Diaz has dipped back into the musician well to find herself a new guy — John Mayer! The 34-year-old Shrek actress, whose almost 4-year relationship with Justin Timberlake ended in January, and rocker Mayer were spotted out in New York last night, a source exclusively tells Usmagazine.com. “They went out to several places…It was the two of them, getting to know each other, out on the town.”

According to a source, Diaz, who is in New York filming the comedy What Happens in Vegas, and Mayer have known each other for awhile. “This was technically not their first time hanging out…they’ve hung out together with friends before. But this was the first time together like this. It’s new and developing…but they really like each other and it went well,” a source explained.

[From US Weekly]

Both Diaz and Mayer’s reps refused comment, while Mandy Moore says she’s just friends with the randy musician.

Mayer sure got a lot of mileage out of his few months with Jessica Simpson. Maybe he figures he may as well bang another famous woman if he wants to keep his name in the glossies. That’s just about the only reason I could come up with for someone wanting to date Cameron Diaz. I guess this means she dumped Criss Angel back when he bragged about her after his big stunt.

This is the guy who told a Rolling Stone journalist last September that he’d like to see a couple have sex in person, said he slept with three girls a week when he was on tour, and called his penis Dominican because it was dark and had a great batting average. Mind you he was really high at the time and probably thought it was a good idea to give silly controversial responses so that he would get publicity. Back when I was single I would Google the guys I was dating, and I would have avoided this guy based on that interview, even if he was kidding. I mean if I was famous I would have stayed away from him. As a nobody I probably would have taken my chances just so that I could say I dated John Mayer. Lame, isn’t it?

Here’s Mayer getting some wine last night in NY. I wonder if he and Diaz enjoyed it with a good bowl. Thanks to Splash News for these pics.