Lady Gaga is following up her acclaimed Super Bowl halftime show this past Sunday with a "duet" with the biggest band on the planet, Metallica, this coming Sunday.
Rolling Stone confirmed the collaboration Tuesday morning.
Following the Super Bowl gig, Gaga announced a world tour for her latest album, Joanne.
And while Gaga regularly performs at the Grammys, whether she's promoting an album or not, Metallica hasn't appeared on the broadcast since 2014, when they played "One" with Lang Lang.
Metallica's song, "Hardwired," is nominated for Best Rock Song this year.
Gaga is not up for any awards since her last album was released after the 2016 Grammys deadline.
What the two artists plan is a bit of a mystery. However, a Gaga fan site tweeted a snipped of a Grammy promo clip apparently announcing the collaboration.
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