Don't trust your secrets to Ed Sheeran.

The singer accidentally slipped to The Mirror last month that pals Courteney Cox and boyfriend Johnny McDaid have moved in together.

"I'm not sure that it's public knowledge, so maybe I shouldn't have said anything -- but, yes, they're already living together," Sheeran told the Mirror at a VIP preview of "A Splendid Isolation" exhibition in London. "Things are moving fast. He moved in and, judging by the last time I saw them, they couldn't be happier."

Cox, 49, and McDaid, 37, were first seen together in December at the holiday party of Cox's friend Jennifer Aniston. They also reportedly have vacationed together in Italy with Cox's 9-year-old daughter, Coco.

A source also told Us Weekly that Cox and McDaid are talking marriage and having a child together.