Rock Musician and Composer Frank Zappa

Before starting his anarchic, avant-garde band the Mothers of Invention, Frank Zappa wrote chamber music and played in lounge bands. His new memoir explains how he went from a freelance guitarist to an unwitting rock star.

Six years before his death in 2016, Prince recorded — but did not release — Welcome 2 America. Who knows why Prince opted to hide it away in 2010; this album's sound is very much of-the-moment.

Photographer Bob Gruen spent decades capturing the lives and performances of rock stars of the '60s, '70s and '80s, including John Lennon, the Rolling Stones, Chuck Berry, Tina Turner — and many more. Gruen put in many hours backstage, in studios and on the road, sometimes doing drugs and drinking until dawn with his subjects.