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HOLLYWOOD, CA - APRIL 25: Musicians Stephen Stills (L) and Neil Young perform on stage during the 3rd Light Up the Blues Concert to benefit Autism Speaks held at the Pantages Theatre on April 25, 2015 in Hollywood, California. (Photo by Tommaso Boddi/WireImage)

HOLLYWOOD, CA - APRIL 25:  Musicians Stephen Stills (L) and Neil Young perform on stage during the 3rd Light Up the Blues Concert to benefit Autism Speaks held at the Pantages Theatre on April 25, 2015 in Hollywood, California.  (Photo by Tommaso Boddi/WireImage)