IMAGE DISTRIBUTED FOR VIRGIN MOBILE - Dusty Hill (L) and Billy Gibbons of ZZ Top perform at the 2012 Virgin Mobile FreeFest on Saturday, October 6, 2012 in Columbia, Maryland. (Photo by Paul Morigi / ... more 
IMAGE DISTRIBUTED FOR VIRGIN MOBILE - Dusty Hill (L) and Billy Gibbons of ZZ Top perform at the 2012 Virgin Mobile FreeFest on Saturday, October 6, 2012 in Columbia, Maryland. (Photo by Paul Morigi / Invision for Virgin Mobile/AP Images) less 
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Associated Press
Sun, Oct 7, 2012 10:55 AM EDT