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INDIANAPOLIS, IN - APRIL 04: Rihanna performs onstage during the Coke Zero Countdown at the NCAA March Madness Music Festival Ð Day 2 at White River State Park, April 4, 2015 in Indianapolis, Indiana. (Photo by Tasos Katopodis/Getty Images for Turner)

INDIANAPOLIS, IN - APRIL 04:  Rihanna performs onstage during the Coke Zero Countdown at the NCAA March Madness Music Festival Ð Day 2 at White River State Park, April 4, 2015 in Indianapolis, Indiana.  (Photo by Tasos Katopodis/Getty Images for Turner)