Lady Gaga Baseball Misbehavin’

Lady Gaga spent her Thursday afternoon doing what any self-respecting native New Yorker would: Flipping people off!

Gaga stunned fans at a baseball game in New York on Thursday by stripping off to her underwear in full view of the crowd, swearing at photographers and making a series of rude hand gestures. Ah — only in the Big Apple!

The Poker Face”” hitmaker — who grew up attending Yankees games with her dad — attended the New York Mets’ matchup against the San Diego Padres at Citi Field Stadium in Queens, arriving covered up in a leather jacket and taking a seat in the stands. Of course, it didn’t take long for the pop sensation to became annoyed with the attention she was gathering in the general admission; she promptly moved to Jerry Seinfield’s private box.

Eventually, Gaga got so fed up with the photographers hounding her and jockeying to take her picture, she flipped them the middle finger.

Gaga has been back in her hometown for her younger sister’s high school graduation, which she attended on Monday.