The "Better With You" singer is engaged to longtime girlfriend Katie Peterson, ET confirms. McCartney and Peterson, both 32, have been dating since 2012.
A source tells ET that the former Young & Hungry star asked for the actress' hand in marriage at Cut by Wolfgang Puck at the Beverly Wilshire Hotel in Los Angeles on Friday night. Us Weeklywas first to report the engagement.
An eyewitness tells ET that the couple was with a group of friends when McCartney got down on one knee to propose. "The whole restaurant fell silent as he asked her to marry him and went into a loud applause and cheered when she said yes!" the eyewitness says.
According to the eyewitness, Chef Wolfgang Puck was at the restaurant at the time of the proposal and sent two complimentary bottles of champagne to the group's table to celebrate. During their dinner, they enjoyed the rib eye, melon salad, sliders, peach pie and more.
A couple of hours after the news broke online, McCartney shared a photo of him and Peterson kissing. The sweet snap also shows off her stunning engagement ring.
The couple's exciting news came on their 7-year anniversary. Early Friday, Peterson took to her Instagram Story to share their "anniversary activities." In the clip, the lovebirds are getting pampered at a nail salon.
ET caught up with McCartney earlier this year, where he opened up about reconnecting with his fans after a 4-year music hiatus and being more confident than ever before.
"I’m never afraid to take risks," he told ET. "I think right now, for me, I have never been more comfortable in my own skin. I think what audiences are getting now is the real, authentic me. I believe that when you’re 16 and 17 and putting out music, you don’t know yourself yet. You might be a good singer, but you don’t really feel that comfortability. You haven't lived long enough, traveled, you haven’t met enough people, you haven’t been in enough relationships."