Lady Gaga Performs at The Oak Room (PHOTOS)

Lady Gaga–minus the makeup and elaborate costumes and stage shows– went back to basics on Wednesday night, getting gritty for a performance at The Oak Room in New York City.

The impromptu bar performance featured Gaga looking not very Gaga-like (trust us, it’s her … the tattoos match), belting out some tunes while donning a sectioned black pleather get-up. Whoever was at The Oak Room got a big old surprise, that’s for sure.

Check out Gaga working The Oak Room in the gallery!

Tags: Lady Gaga