Metallica's performance at the Grammys this year was a bit of a spectacle for a few reasons. For one, it did "Moth Into Flame" with Lady Gaga, and while the performance was awesome, there was an issue with James Hetfield's microphone that made headlines for quite some time.
Now you can check out some behind-the-scenes footage of the band and Lady Gaga's performance, which shows how the song came together, and even shows the band jamming on the song to figure out where Gaga fits in.
Also, yes – this is different than the dress rehearsal video.
