WASHINGTON, DC - DECEMBER 07: Taylor Kinney and Lady Gaga arrive at the 37th Annual Kennedy Center Honors at the John F. Kenn
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Lady Gaga and Taylor Kinney, her boyfriend for the last four years, got engaged over the long weekend. That's right: Mother Monster's gettin' hitched.

“He gave me his heart on Valentine’s Day, and I said YES!” Gaga said on Instagram on Monday, sharing a black-and-white photo of a gorgeous heart-shaped diamond.

@ladygaga Instagram

RyanSeacrest.com writes that the 28-year-old Gaga and 33-year-old Kinney "first met on the set of her 2011 video for 'Yoü and I' when the two steamed up the screen as lovers, and began dating just a few months later. After a brief split in May 2012, the two got back together a month later."

Recently we learned that Lady Gaga has been working with Paul McCartney and that she'll be recording a second album with Tony Bennett. Think the gents will be invited to the wedding?