A Green Day for Gaga! Lady Gaga Goes Wild for Billie Joe and American Idiot

While back in her hometown of New York City to perform a sold out show at Madison Square Garden, recent Grammy winner Lady Gaga couldn't pass up the opportunity to take in a Broadway show. With fellow rock star Billie Joe Armstrong currently leading the cast of the Green Day musical American Idiot, the "Born This Way" singer headed to the St. James Theatre to rock out to the Tony-nominated show on February 23. After the performance Gaga headed backstage to deliver some words of love to the talented cast and crew. Take a look at her wild visit below!