Metallica and Lady Gaga unleashed an outsized performance of the former's "Moth Into Flame" at the Grammy Awards Sunday.
While Metallica's James Hetfield was initially beset by microphone issues, he and Gaga eventually shared a
This article originally appeared on www.rollingstone.com: See Metallica, Lady Gaga Unleash Blistering ‘Moth Into Flame’ at Grammys