Metallica and Lady Gaga performed the former’s “Moth Into Flame” together at the 59th Annual Grammy Awards just moments ago.

James Hetfield’s microphone wasn’t working for the first portion of the performance, but the crew got it squared away by the second verse.

We captured the performance via cell phone, and we’ll update this post with official video as soon as it’s available. Official video below!

What do you think? A terrific collaboration of the union of metal and pop, or an abomination to Metallica’s legacy? Watch the video below and sound off in the comments.

More metal-related Grammy coverage: watch Megadeth’s acceptance of the “Best Metal Performance” Grammy (including the house band playing Metallica’s “Master of Puppets” as Megadeth walks to the stage) and check out Lady Gaga’s gigantic new Metallica-themed back tattoo.