Bob Gruen is an American author and one of the most well-known and respected photographers in rock and roll, who has worked with John Lennon and Rolling Stones, amongst many other stars.
Featured image: Bob Gruen - Elton John and John Lennon At Record Plant New York, 1972 (detail). Photograph. 20 × 16 in. 50.8 × 40.6 cm. Photo courtesy ArtWise