Lady GaGa is going to become a married woman! On Monday (Feb 16th) the 28-year-old pop star shared with her fans that she is now engaged to Taylor Kinney after he popped the question on Valentine's Day.

Lady Gaga
Lady Gaga is now engaged to her longtime boyfriend Taylor Kinney

"He gave me his heart on Valentine's Day, and I said YES!" Lady Gaga wrote on Instagram along with a photograph of her heart-shaped diamond engagement ring the 'Chicago Fire' actor presented her while proposing.

But before Gaga, whose real name is Stefani Joanne Angelina Germanotta, announced the exciting news herself, she and her new fiancé were spotted showing off her new bling on Valentine's Day at her father's Upper West Side Manhattan restaurant.

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"I heard the singer say "it was time" as she flashed the ring around. Family members said the pair had been going out for about four years," reports Times Herald-Record executive editor Barry Lewis, who was eating at the restaurant at the time with his wife.

"Gaga and Kinney were accompanied by two massive bodyguards, one located by Gaga, the other near the entrance to the main dining room," Lewis added. "Her father, Joe Germanotta, who owns the restaurant with chef and author Art Smith, popped open a bottle of champagne to toast the couple and welcome Kinney into the family."

Gaga and Kinney, who first met on the 2011 set of the singer's 'You & I' music video, have been dating for about four years, and hints of the couple getting engaged have arisen in recent months.

More: Lady Gaga Shares Week Of Romance With Taylor Kinney On Instagram

"I really can't imagine being with anyone other than who I'm with right now," Gaga told Howard Stern in December while being probed about marriage. "He is the right guy," she added. "I have that feeling. I just know it."