UNITED KINGDOM - JUNE 01: BBC TV CENTRE Photo of Bob Dylan, performing on TV show
Bob Dylan poses for a portrait with his Gibson Acoustic guitar in September 1961 in New York City, New York.
Portrait of American singer and musician Bob Dylan (born Robert Zimmerman) with a crinkled brow and an unlit cigarette in his mouth, New York, New York, 1962.
Portrait of American singer and musician Bob Dylan (born Robert Zimmerman), New York, New York, 1962.
American musician, singer and songwriter Bob Dylan playing guitar behind a microphone during a recording session for his first album, 'Bob Dylan,' c. 1961.
NOVEMBER 1962: Bob Dylan recording his first album, 'Bob Dylan', in front of a microphone with an acoustic Gibson guitar and a harmonica during one of the John Hammond recording sessions in November 1961 at Columbia Studio in New York City, New York.
NEW YORK - AUGUST 8: Bob Dylan poses for a portrait that appears on the cover of of his 'Another Side of Bob Dylan' album on August 8, 1964 in New York City, New York.
The album cover sleeve of Another Side of Bob Dylan by Bob Dylan, record released in 1964.
Bob Dylan plays piano with a harmonica around his neck during the recording of the album 'Highway 61 Revisited' in Columbia's Studio A in the summer of 1965 in New York City, New York.
1965: Bob Dylan (standing center, wearing Ray-Ban Sunglasses with a harmonica around his neck) and his manager Albert Grossman (on Dylan's right) listen back to the recordings of the album 'Highway 61 Revisited' surrounded by engineers and other listeners in the booth of Columbia's Studio A in the summer of 1965 in New York City, New York.
DENMARK - MAY 01: Photo of Bob Dylan doing a press conference
INGLEWOOD, CA - 1987: Grammy Award-winning singer Bono (right), of the rock group U2, performs songs from "The Joshua Tree" album with folk singer Bob Dylan during a 1987 Inglewood, California, concert at the Forum.
Photo of Bob Dylan, at home with Allen Ginsberg
American electric folk hero Bob Dylan (born Robert Zimmerman) and singer, songwriter Joan Baez in Embankment Gardens, London.
Photo of Bob Dylan, with John Sebastian, playing bass in cafe
Bob Dylan poses for a portrait in 1963.
NASHVILLE, TN - MAY 3: Bob Dylan recording his album 'Self Portrait' on May 3, 1969 in Nashville, Tennessee.
American folk/rock singer and songwriter Bob Dylan smiles during a meeting with the British press, April 28, 1965.
2nd September 1969: American electric folk hero Bob Dylan arriving at an airport with his wife Sara.
DENMARK - JANUARY 01: Photo of Bob Dylan performing at Copenhagen, 1983
Bob Dylan plays a Fender Telecaster electric guitar on stage in 1974.
LOS ANGELES, CA - FEBRUARY 13: Bob Dylan performs onstage during The 53rd Annual GRAMMY Awards held at Staples Center on February 13, 2011 in Los Angeles, California.
LONDON - JUNE 20: Singer Bob Dylan performs on stage at The Fleadh 2004 at Finsbury Park June 20, 2004 in London, England. The Fleadh 2004 doubles as the London stop of the UK leg of his European tour.