Bobby Z: 'Prince went from a caterpillar to a butterfly in that one purple trench coat'

Bobby Z first met Prince in the mid-'70s when the two were teenagers, and Bobby went on to become drummer for the Revolution. In conversation with Andrea Swensson, Bobby Z offers a philosophical look at Prince's incredible life and career. "Prince was hearing all the music in his head like Beethoven or other classical musicians," Bobby Z says. "He was kind of reborn in all these characters throughout the ages."