Paul Simon of American folk rock duo Simon & Garfunkel performs the song 'I Am a Rock' on the set of the Associated Rediffusion Television pop music television show Ready Steady Go! at Wembley Television Studios in London on 8th July 1966. (Photo by Ivan Keeman/Redferns)
DENVER, COLORADO – David Olney performing during the Dave Alvin's ' West of the West ' train tour at the Soiled Dove in Denver, Colorado on April 23, 2015. (Photo by Larry Hulst/Michael Ochs Archives/Getty Images)
