When Lady Gaga and Metallica joined forces at the Grammys, their wild "Moth Into Flame" performance was marred by technical difficulties including a malfunctioning microphone for lead growler James Hetfield. Now we know what that gig would have been like had it gone off without a hitch. Gaga has posted footage of the dress rehearsal to her official YouTube account. Watch the fiery practice run below.
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It's very nice of the Grammys to provide canned applause like that.
