For a little while, the Grammys were planning to include a live-onstage collaboration from a Tribe Called Quest, Anderson .Paak, and Dave Grohl. That would’ve been pretty weird! Grammy producers have canceled that plan, but they’ve come up with something just as weird: Idolator reports that Sunday night’s show will feature Lady Gaga duetting with Metallica.

This performance, of course, comes just a week after Gaga’s impressive, effortful Super Bowl Halftime Show, and it’ll be the third straight Grammys to feature a performance from Gaga. So let’s take a minute to imagine what this might even look like. You’d have to imagine that it’ll just be “Million Reasons” with a Kirk Hammett guitar solo. But Gaga is a known metal fan, so it’s at least possible that she’ll sing “Fade To Black” or something. Maybe she’ll do something from Lulu! And if we get Gaga hanging upside down from the venue’s ceiling while belting out “Creeping Death,” at least we’ve got some warning.