In 2011, Marshall Charloff was asked to perform with Matt “Dr.” Fink, a keyboardist from Prince and the Revolution, at a benefit concert at the Rock and Roll Hall of Fame. He mostly played guitar with Fink and members of 94 East, a ‘70s funk band that helped launch Prince’s career. They played 94 East songs, but the band also performed two Prince songs — “Purple Rain” and “I Wanna Be Your Lover,” Charloff said — with Charloff on vocals.