Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Billy Gibbons of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Frank Beard of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Billy Gibbons of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Billy Gibbons of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Frank Beard of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Billy Gibbons of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Billy Gibbons of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Billy Gibbons of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Frank Beard of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Billy Gibbons of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Billy Gibbons of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Billy Gibbons of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Billy Gibbons of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Frank Beard of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Billy Gibbons of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Billy Gibbons of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Billy Gibbons of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Billy Gibbons of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Billy Gibbons of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill of ZZ Top performs August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California

Dusty Hill (L) and Billy Gibbons of ZZ Top perform August 19, 2012 at Sleep Train Pavilion in Concord, California