Frank is the lead singer of the band "The Soronpfbrs" and wears a giant fake head that he never takes off. His band mates respect his genious and talent, Frank looks and sounds like some sort of vessel from the divine realm and he is generous and pure at heart. The character is brilliantly played by Michael Fassbender who reveals himself to be a very competent singer. The songs are bizarre and beautiful. Inspiring and moving film. A new kind of beautiful. Made me feel things. Also,potato stew.