Celebrity Gossip's

Lady Gaga recently popped into Midtown strip club HeadQuarters to give one of the customers a hot lap dance.

Donning only a transparent jumpsuit with a few carefully placed sequins over her nipples and private parts, the pop diva lap-danced for a man who looked a lot like on-again boyfriend Matt Williams.

According to The New York Post, a spy said they "smooched and groped to the point several people suggested they rent a Champagne Room so she could give him a private, versus public, lap dance," adding that by the end of the night, the guy was covered in Gaga's red lipstick.