Cameron Diaz Dating John Mayer

Cameron Diaz is dating musician John Mayer, reports Us Weekly.

Cameron, 34, and John, 29, were spotted out and about in NYC Tuesday night. “They went out to several places,” said one source. “It was the two of them, getting to know each other, out on the town.”

Added a source, “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.”

Cameron broke up with Justin Timberlake in January after a 4-year relationship together. John split with Jessica Simpson in May after nine months together.

John just wrapped up the US leg of his Continuum tour while Cameron is currently in New York filming the comedy What Happens in Vegas.

Reps for Diaz and Mayer both had no comment.