EXCLUSIVE: Madonna & Boyfriend Attend Ryan Leslie's NYC Concert On Valentine's Day!

How did the legendary Madonna celebrate Valentine's Day? With music and her man, of course!

In an exclusive photo obtained by Life & Style, the Material Girl and herboyfriend, Brahim Zaibat, are seen scoping out Ryan Leslie's concert in NYC at Irving Plaza on Feb. 14.

"Most people didn't recognize her!" an onlooker tells Life & Style. "She wasn't dressed up. She wore red wayfarer glasses and all black."

And Madge was intent on enjoying the show.

"She blended in with the crowd and listened to the music from the VIP balcony," the eyewitness adds. "Brahim was very protective of her with his body language and stood over her until they were ready to leave. He helped escort her out through the crowd."

Though there's a 30-year-age difference between the pair — he's 25, she's 54 — the relationship seems to be stronger than ever. Madonna began seeing the French dancer in 2010, after meeting him at a launch party for her clothing line Material Girl.

"I didn't choose to, you know, I didn't, like, write down on a piece of paper I'm now going to have a relationship with a younger man," she's explained of their union. "That's just what happened. You see, that's the romantic in me. I just met someone that I cared for, and this happened to be his age."

It's been a busy week for the couple. Brahim recently signed on with the prestigious IMG modeling agency and walked in the Jeremy Scott New York Fashion Week show on Feb. 13.

As for why Madonna attended the concert — could there be a Ryan and Madonna duet in the future, perhaps?

Madonna was previously married to director Guy Ritchie. The pair have one biological son, Rocco, 12, and adopted son, David, 7. She has also has daughter Lourdes, 16, from a previous relationship.