Reports have surfaced that Katy Perry is engaged to boyfriend John Mayer, and her publicist is neither confirming nor denying them.
 
On Valentine's Day, the pop star was spotted with a ruby ring on her wedding finger during a romantic night out with the singer/songwriter, suggesting he had proposed. She was wearing the ring as they left Vicenti restauraunt in Brentwood, Calif.
 
Perry's people aren't commenting on the rumors.
 
The singer split from her husband, British actor and comedian Russell Brand, at the end of 2011.

Meanwhile, Mayer has opened up about his past womanizing ways, saying he regrets kissing and telling about past relationships to stars such as Jessica Simpson and Jennifer Aniston.

He told CBS Sunday Morning: "I was just a jerk. And it's hard for people to process that."