SHE’S known to flash the flesh, but Lady Gaga revealed a little more than she probably intended to while out in London earlier today.

Leaving a Bikram yoga class in London, as per usual, the singer greeted her army of Little Monsters and photographers that follow her every move.

However, as she lifted her arm to say hello, she accidentally flashed some serious underboob, going braless in a dark green high-necked cropped jumper.

She teamed the daring top with a flared high-waisted matching skirt, adding some extra height with a pair of colourful strappy sandals.

Gaga, 29, is in the capital to take to the stage alongside Tony Bennett at the Royal Albert Hall this evening for a classic night of jazz.

Always one to add glamour to any look, the Born This Way hit maker covered her eyes with a pair of classic white-rimmed sunglasses, with her wearing her blonde locks scraped back away from her face

Gaga’s dedicated group of fans follow her around the globe and the singer makes sure she lets them know just how much she appreciates them.

Earlier today she sent them pizza as they waited outside her hotel, before later sending them sweets and donuts.

She also took to Instagram to post: “Coffee w/ monsters outside the Langham. London punk babies lined up celebrating our return to one another.”

She continued: “You give me so much energy, I can’t wait to perform for you with Tony [Bennett] tonight.

“And I dream of the morning we share in my new music together. When the new era of Monsters begins again. And the cycle continues.”

Reminiscing about her “former life” she then went on: “During all the long car rides, I dream about my former life.

“Walking freely down the streets. And then, in a moment I am deeply grateful.

“With all this attention now, what will I say. How will I change the world. What will my music contribute to humanity,” she finished up by saying.