Lady Gaga was at the Yankee Stadium on Friday, June 18, to watch the match of the New York Yankees and the New York Mets. Instead of wearing something appropriate for her favourite team, the pop singer wore a half-buttoned Yankees shirt that covered her lacy black lingerie.

A source close to the team told Radar Online that Gaga arrived in the game barely dressed.

"She showed up in a bra, panties and fishnets. We supplied her with a Mariano Rivera jersey to wear so she could sit outside of the suite," the source said.

However, the sensational singer unbuttoned her shirt, revealing her sexy underwear. The site said that Gaga also piqued in a clubhouse by drinking plenty of booze and partying with her friends.

Brian Cashman, Yankee's general manger, said that she will still be allowed to see future games.

Despite GaGa's drunken behavior during June 18 game, Cashman said, as quoted by the New York Post, "She's not banned. She didn't do anything wrong."

"That was the wrong time and the wrong place," he added.