Lady Gaga got quite a scare in London when a stalker reportedly got backstage and nearly made it to the singer, according to Holly­scoop.

“Gaga was understandably shaken by the incident but was a consummate professional and continued as per normal, putting on a dazzling show,” a source says of her show at the 02 arena.

 The unidentified 24-year-old apparently made a fake backstage pass to get past security and was found heading for Gaga’s dressing room.

She was questioned and released.