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Lady Gaga to Duet with Metallica at Grammys

AP Photo

Just one week after conquering the Super Bowl halftime show, Lady Gaga will apparently be hitting the Grammy stage this Sunday.

An online ad surfaced late Monday night announcing that Gaga will join previously announced act Metallica, whose "Hardwired" is nominated for Best Rock Song. Rolling Stone has since confirmed the performance.

The Recording Academy has also confirmed Demi Lovato will join forces with Andra Day, Tori Kelly and previously announced performer Little Big Town to celebrate the music of the Bee Gees and the 40th anniversary of Saturday Night Fever.

As we reported Monday, Katy Perry and Kelsea Ballerini have also been added to the Grammys performance roster, which includes Beyoncé, Adele, Chance the Rapper, Sturgill Simpson, Little Big Town, Gary Clark Jr., Daft Punk, Alicia Keys, John Legend, Bruno Mars, Maren Morris, Carrie Underwood, The Weeknd, Anderson .Paak and A Tribe Called Quest.

This year's Grammys will take place Sunday, Feb. 12, airing live at 8 p.m. EST/5 p.m. EST on CBS.