Lady Gaga and Taylor Kinney, who've been dating for five years and engaged for more than a year, are a couple no more, according to reports out Tuesday.
The "Chicago Fire" actor proposed to the singer on Valentine's Day 2015. and as recently as March, around her 30th birthday, there were rumors that the two had secretly gotten married.
That diamond ring was also missing in a photo she posted Monday night after a day working with kids at a home for boys in Los Cabos, Mexico, where according to People she's vacationing with friends.
There are no details out yet about how or why the breakup happened, and reps for the former flames weren't immediately commenting.
Kinney and Gaga -- real name Stefani Germanotta -- met in mid-2011 while shooting the video for "You and I," in which a shirtless Kinney tended to his lady in various incarnations, simulated sex with her and donned a white tux to marry her. Rumors that they were dating surfaced soon after.
"We were in the middle of this scene and I remember that he kissed me," the "Poker Face" singer told Ellen DeGeneres in 2013. "And it wasn't scripted for him to kiss me, and I was sort of like, umm, was that real or was that fake? And he just didn't really say anything, and that was fine by me, and we just kept filming."
Follow Christie D'Zurilla on Twitter @theCDZ.