Take Me Out To The Bra Game

But I don’t get why Lady Gaga would want to watch a stinky old Mets-Padres day game when there’s a fantastic Yankees-Astros interleague series starting tonight:

The beer-swilling diva — who has professed her love for the Yankees — proceeded to repeatedly salute the crowd with her middle finger.

When fans rose for the seventh-inning stretch, she did, too — dancing and giving onlookers the double-bird salute.

She watched the rest of the game in just her undergarments without incident.

“She was psyched to go the game,” a source close to Gaga told The Post.

Location Scout: Citi Field.