Sorry ladies, Ed Sheeran's off the market.

The "Sing" singer revealed that he's indeed in a relationship and it looks like it's pretty serious, since he introduced her to a very important woman in his life. No, not his mom -- Taylor Swift!

Sheeran told US Weekly that the trio went for dinner in London and that his "Everything Has Changed" collaborator "likes her."

Ed wouldn't give up the identity of his mystery girlfriend, who he calls "nice" and "really cool," but he did say that she "works for a food company -- well, not a food company, [but] she works for a chef."

So what's her signature dish? Since Ed's new GF is Greek, her specialty is, well, "anything Greek." And while this lucky lady may be winning Ed over with her cooking, Sheeran, on the other hand isn't using his talents to score any extra points. He revealed that serenading his girl would be "really creepy and weird."

"If someone did that to you," he said, "like legitimately, if someone sat you down like, 'Hey baby, I’ll come play some,' you’d be a bit awkward about it, right?"

Nope, wouldn't be awkward about it at all, Ed!

The British singer, who drops his sophomore album, Multiply, next month, has also been spending some time with another new lady: Hilary Duff. To nearly everyone's delight, the pair hit up a studio together to work on a "really good song" for Duff's upcoming album.