Watch Metallica & Lady Gaga perform "Moth Into Flame” live at the Grammys
- Publish Date
- Monday, 13 February 2017, 4:34PM
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Lady Gaga joined Metallica to perform "Moth Into Flame" live at the Grammys.
Although the performance didn't go without a hitch as James Hetfield's mic cut out.
Earlier Gaga showed off her Metallica tattoo she got for the performance.
Thoughts Metallica fans?
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