Bob Dylan through the years

Bob Dylan's name and picture appears on a marquee complete with congratulations on his being awarded the Nobel Prize for Literature outside the Cosmopolitan of Las Vegas Hotel in Las Vegas, Nev., on Oct. 13, 2016. Dylan was scheduled to perform at the hotel on the day he was awarded the Nobel Prize "for having created new poetic expressions within the great American song tradition."

Former President Jimmy Carter presents Bob Dylan with the award for 2015 MusiCares Person of the Year on Feb. 6, 2015, during the MusiCares Person of the Year show at the Los Angeles Convention Center.

President Barack Obama presents the Presidential Medal of Freedom to singer-songwriter Bob Dylan on May 29, 2012, in the East Room of the White House in Washington. The award is the highest honor given to American citizens during peacetime.

Singer-songwriter Bob Dylan performs July 22, 2012, at Les Vieilles Charrues festival in Carhaix, western France.

American singer-songwriter Bob Dylan performs April 8, 2011, during a concert in Shanghai, China.

Singer-songwriter Bob Dylan performs on June 18, 2011, at the London Feis Festival, in Finsbury Park. He had turned 70 on May 24.

Singer-songwriter Bob Dylan performs on Feb. 13, 2011,during the 53rd annual Grammy Awards in Los Angeles.

Singer-songwriter Bob Dylan on June 23, 2004, at the University of St. Andrews in Fife, Scotland,, after he received an honorary doctor of music degree.

Bob Dylan performs April 25, 2011, during a blues festival.

Bob Dylan performs March 28, 2004, at the Apollo Theater Foundation's 70th anniversary benefit celebration at the Apollo Theater in Harlem.

Singer-songwriter Bob Dylan performs on Jan. 12, 2012.

Bob Dylan performs on April 6, 2011, with his band in Beijing, China. He was scheduled to travel to Vietnam to perform.

Bob Dylan performs "Cry a While" on Feb. 27, 2002, during the 44th annual Grammy Awards in Los Angeles.

Singer-songwriters Bob Dylan, left, and Eric Clapton perform June 30, 1999, for a sold-out crowd at Madison Square Garden during Clapton's charity concert to benefit Crossroads Centre at Antigua.

Bob Dylan performs July 11, 1998, at a Doctor Music Festival in Escalarre, near Andorra, Spain.

American singer-songwriter Bob Dylan sings "Knockin' on Heaven's Door" in for Pope John Paul II on Sept. 27, 1997, during a concert pontiff in Bologna, Italy.

Singer-songwriter Bob Dylan performs on July 17, 1993, in Berne, Switzerland during the Gurtenfestival, attop Berne's local mountain Gurten.

Singer-songwriter Bob Dylan celebrates his 30th anniversary as a recording artist on Oct.16, 1992, with a concert at at Madison Square Garden.

Singer-songwriter Bob Dylan is joined by other artists on stage after Dylan's 30th anniversary concert on Oct. 7, 1992, in Madison Square Garden.

Folk singer Bob Dylan performs on Oct. 8, 1987, in Paris, France.

Singers-songwriters Bob Dylan, right, and Tom Petty perform for a packed audience on July 18, 1986, at Madison Square Garden.

Singer-songwriter Bob Dylan performs on June 1, 1984, at St. Jakob-Park, a stadium in Basel, Switzerland.

Singer-songwriter Bob Dylan performs on July 24, 1981, in Basel, Switzerland.

Bob Dylan performs on July 4, 1978, in Paris, France.

Singer-songwriter Bob Dylan performs for more than 17,000 fans on Jan. 29, 1974, at the Nassau Veterans Memorial Coliseum.

Singer-songwriter Bob Dylan performs on July 1, 1984, during a concert in Sceaux, France, part of the Paris suburbs.

Singer-songwriter Bob Dylan during a news conference in 1969.

Singer-songwriter Bob Dylan and his wife, Sara, strolling through London's Heathrow Airport on Sept. 2, 1969.

This is a photo from the Bob Dylan documentary "Dont Look Back," on June 14, 1967. The sing has lyrics from his song, "Subterranean Homesick Blues."

Bob Dylan during a news conference on May 22, 1966, in Paris, France.

Singer-songwriter Bob Dylan in London on April 27, 1965.

Rock singer/musician Bob Dylan, foreground left, poses with his band in Los Angeles on June 4, 1984, before the start of their European tour.

Folk singers Joan Baez, left, and Bob Dylan entertain over 80,000 people gathered at the Rose Bowl in Pasadena, California. on Sunday afternoon, June 6, 1982.

Bob Dylan performs at the Grammy Awards in Los Angeles on Feb. 27, 1980.

Bob Dylan and the Rolling Thunder Revue perform at a benefit concert for boxer Rubin "Hurricane" Carter in January 1976. Musician Bob Neuwirth is at right.

Bob Dylan at a surprise appearance at the Academy of Music in New York City on Jan. 1, 1972.

Folk singer and songwriter Bob Dylan plays the harmonica and acoustic guitar in March 1963 at an unknown location. He was born in Duluth, Minnesota in 1941 as Robert Allen Zimmerman.