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LOS ANGELES, CA - FEBRUARY 12: Recording artist Lady Gaga (2nd R) and recording artists (from L) Robert Trujillo, James Hetfield, and Lars Ulrich of music group Metallica perform onstage during The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California. (Photo by Kevin Winter/Getty Images for NARAS)

LOS ANGELES, CA - FEBRUARY 12:  Recording artist Lady Gaga (2nd R) and recording artists (from L) Robert Trujillo, James Hetfield, and Lars Ulrich of music group Metallica perform onstage during The 59th GRAMMY Awards at STAPLES Center on February 12, 2017 in Los Angeles, California.  (Photo by Kevin Winter/Getty Images for NARAS)