Um cool but like, what? Who knew that Gaga was such a heavy metal freak.
After smashing it at the Super Bowl halftime show, Lady Gaga will be hitting up the Grammy's stage with ~hard rockers~ Metallica.
Rolling Stone have confirmed that she'll be joining the boys onstage, but still no word on how the actual f*ck the performance will go down.
Like Gaga and sport is a weird mix, but Metallica, like wow okay girl you do you.