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LOS ANGELES, CA - FEBRUARY 12: Recording artist Lady Gaga (C) and recording artists (from L) Robert Trujillo, Kirk Hammett, James Hetfield, and Lars Ulrich of music group Metallica attend The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by John Shearer/WireImage)

LOS ANGELES, CA - FEBRUARY 12:  Recording artist Lady Gaga (C) and recording artists (from L) Robert Trujillo, Kirk Hammett, James Hetfield, and Lars Ulrich of music group Metallica attend The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California.  (Photo by John Shearer/WireImage)