SAN DIEGO, CA - JULY 19: Musicians Robert Trujillo (L) and James Hetfield of Metallica perform a secret concert in celebration of 'Metallica Through The Never' during Comic-Con International 2013 at ... more 
SAN DIEGO, CA - JULY 19: Musicians Robert Trujillo (L) and James Hetfield of Metallica perform a secret concert in celebration of 'Metallica Through The Never' during Comic-Con International 2013 at Spreckels Theatre on July 19, 2013 in San Diego, California. (Photo by Michael Kovac/Getty Images for Metallica Through The Never) less 
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Getty Images | Photo By Michael Kovac / Getty Images for Metallica Throu
Sat, Jul 20, 2013 5:14 AM EDT