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MOUNTAIN VIEW, CA - OCTOBER 16: Zac Brown of The Zac Brown Band performs at Shoreline Amphitheatre on October 16, 2015 in Mountain View, California. (Photo by Tim Mosenfelder/Getty Images)

MOUNTAIN VIEW, CA - OCTOBER 16:  Zac Brown of The Zac Brown Band performs at Shoreline Amphitheatre on October 16, 2015 in Mountain View, California.  (Photo by Tim Mosenfelder/Getty Images)