Exploring the relationship between art and pop music over the last fifty years. Why did Andy Warhol decide to enter the music business by producing the Velvet Underground, and what did the band expect to gain in return? What made Yoko Ono use the skills she developed in the artistic avant-garde in pop music, and what drew John Lennon, in turn, to visual art? Why, in 1982, did Joseph Beuys record the pop single "Sonne statt Reagan,"...