Metallica's James Hetfield, left, and Kirk Hammett play the national anthem before a baseball game between the San Francisco Giants and the Chicago Cubs Monday, Aug. 7, 2017, in San Francisco.\
Metallica's James Hetfield, left, and Kirk Hammett play the national anthem before a baseball game between the San Francisco Giants and the Chicago Cubs Monday, Aug. 7, 2017, in San Francisco.\ Marcio Jose Sanchez AP
Metallica's James Hetfield, left, and Kirk Hammett play the national anthem before a baseball game between the San Francisco Giants and the Chicago Cubs Monday, Aug. 7, 2017, in San Francisco.\ Marcio Jose Sanchez AP