The Grammy-winning singer showed off her heart-shaped engagement ring on Instagram Monday

Mother Monster has some exciting news to share: She’s engaged!

“He gave me his heart on Valentine’s Day, and I said YES!” Lady Gaga wrote on Instagram Monday while showing off a photo of her heart-shaped ring longtime boyfriend Taylor Kinney presented to her while popping the question.

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Shortly after the proposal, the betrothed duo were reportedly spotted inside her family’s Manhattan restaurant.

“I heard the singer say ‘It was time’ as she flashed the ring around,” reports Times Herald-Record executive editor Barry Lewis, who happened to be dining at Joanne’s Trattoria on the Upper West Side with his wife Saturday evening when the couple entered the restaurant.

Lewis reports her father, Joe Germanotta, opened a bottle of champagne to celebrate the happy couple.

Gaga, 28, and Kinney, 33, have been dating for about four years, and the boundary-pushing singer has hinted at an engagement in recent months.

“I really can’t imagine being with anyone other than who I’m with right now,” she told Howard Stern in December while dodging questions about a possible engagement.

“He is the right guy,” she also said, and added that they bond over their mutually creative work. “I have that feeling. I just know it.”

In October, Gaga – real name Stefani Germanotta – called the devoted Kinney “supportive of everything I do,” and also told U.K.’s The Times she loves that he’s a softie.

“He’s the first man that I have dated that, when I sing onstage, he cries,” Gaga said. “That means more to me than anything.”

And for those who wonder about the connection between the openly unconventional pop star and the seemingly straight-laced actor, the singer has a quick answer: He’s a “hidden weirdo.”

“He is extremely strange, actually,” she told Ellen DeGeneres in 2013. “We complement each other’s weirdness. That’s actually one of the first things he ever said to me. It’s a Dr. Seuss quote. You find in someone else a compatible weirdness.”

Even so, she also told the talk show host they keep things super normal when they’re together.