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DETROIT, MI - APRIL 09: (EXCLUSIVE COVERAGE) Prince performs onstage during the "HitnRun" tour at The Fox Theatre on April 9, 2015 in Detroit, Michigan. (Photo by Chelsea Lauren/Getty Images for NPG Records 2015)

DETROIT, MI - APRIL 09:  (EXCLUSIVE COVERAGE) Prince performs onstage during the "HitnRun" tour at The Fox Theatre on April 9, 2015 in Detroit, Michigan.  (Photo by Chelsea Lauren/Getty Images for NPG Records 2015)