Last night news was dropped via TV commercial that Metallica and Lady Gaga will be performing together at the Grammys this year! Metallica previously promised that something unique and special will happen this year at the awards. They are up for "Best Rock Song" for their track "Hardwired" from their latest album. Its unclear what song they will play yet but the Grammys air on February 12 at 8 pm on CBS!!