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Singer Terri Clark performs as part of the 'Two Hats and a Redhead Tour' at the Chronicle Pavilion in Concord. (Photo by Tim Mosenfelder/Corbis via Getty Images)

Singer Terri Clark performs as part of the 'Two Hats and a Redhead Tour' at the Chronicle Pavilion in Concord. (Photo by Tim Mosenfelder/Corbis via Getty Images)