

Singer Bob Dylan performs during his show in Vietnam's southern Ho Chi Minh city on April 10. Dylan was in Vietnam for a one day performance. Stringer/Reuters
Bob Dylan performs in Toronto in 1978.
Bob Dylan looks very much the rebel he has always been throughout his musical career as he rides his Harley Davidson Motorcycle through the streets of Santa Monica, Calif. in this undated photograph. London Entertainment/Splash/Newscom/File
Bob Dylan is known for his harmonica playing. Here he is seen in an undated photograph. Newscom/File
Bob Dylan and Tom Petty perform together during their 1987 tour in Reno, Nev. Daniel Gluskoter/Icon SMI/Newscom/File
Bob Dylan performs in front of 150,000 fans at The Festival at Woodside Bay Ryde on The Isle Of Wight in 1969. KPA/ZUMA Press/Newscom/File
The Traveling Wilburys pose in this undated publicity photograph. The members are (from l. to r.) Bob Dylan, Jeff Lynne, Tom Petty, Roy Orbison and George Harrison. REUTERS/Neal Preston/Rhino Records/Handout/Newscom/File
Bob Dylan sits in the studio during one of the John Hammond recording sessions for Mr. Dylan's first album in 1961. Frank Driggs Collection/Getty Images/Newscom/File
Bob Dylan (l.) displays the 1997 Lillian Gish Prize at a ceremony in New York. Photographer Richard Avedon (r.) presented Mr. Dylan the award. pm/HO-Jay Brady/Serino Coyne Inc. REUTERS/Newscom/File
Bob Dylan performs with his band in Beijing on Wednesday April 6. The American legend was expected to meet resistance from Chinese censors considering his association with US protest movements in the 1960s. AP/Newscom
Bob Dylan sits with singer Joan Baez in 1965. Manchester Mirror/Newscom/File
Bob Dylan performs at the Newport Folk Festival on Aug. 3, 2002, in Newport, R.I. Dylan last played Newport in July 1965, when he appeared onstage with an electric guitar for the first time, smashing barriers between folk and rock, and was booed by folk-music purists. AP Photo/Michael Dwyer/Newscom/File
Bob Dylan sits during an interview in 1964. Mirrorpix/Newscom/File
Two of 1997's Kennedy Center honorees, screen star Lauren Bacall and musician Bob Dylan, sit together at the performing arts center in Washington prior to the start of a gala tribute to their careers. AP Photo/J. Scott Applewhite/Newscom/File
Bob Dylan performs at the 53rd annual Grammy Awards on Feb. 13 in Los Angeles. AP Photo/Matt Sayles/Newscom
Bob Dylan performs before a sold-out crowd in New York's Madison Square Garden during a benefit concert for former Boxer Rubin 'Hurricane' Carter in 1975. Carter was eventually freed after serving 19 years in prison for three murders he didn’t commit. AP/Ray Stubblebine/Newscom/File
Pope John Paul II greets Bob Dylan after he performed in a concert during a Catholic Youth rally in the city of Bologna, Italy in 1997. AFP/Vatican Pool/Newscom/File