Robert Allen Zimmerman (born May 24, 1941), known professionally as Bob Dylan, is an American singer, songwriter, musician, painter, and writer. He has been influential in popular music and culture for more than five decades. Much of his most celebrated work dates from the 1960s, when he became a reluctant "voice of a generation" with songs such as "Blowin' in the Wind" and "The Times They Are a-Changin'", which became anthems for the Civil Rights Movement and anti-war movement. Leaving behind his initial base in the American folk music revival, his six-minute single "Like a Rolling Stone", recorded in 1965, enlarged the range of popular music.

Dylan's lyrics incorporate a wide range of political, social, philosophical, and literary influences. They defied existing pop music conventions and appealed to the burgeoning counterculture. Initially inspired by the performances of Little Richard and the songwriting of Woody Guthrie, Robert Johnson, and Hank Williams, Dylan has amplified and personalized musical genres. His recording career, spanning more than 50 years, has explored the traditions in American song—from folk, blues, and country to gospel, rock and roll, and rockabilly to English, Scottish, and Irish folk music, embracing even jazz and the Great American Songbook. Dylan performs with guitar, keyboards, and harmonica. Backed by a changing lineup of musicians, he has toured steadily since the late 1980s on what has been dubbed the Never Ending Tour. His accomplishments as a recording artist and performer have been central to his career, but his songwriting is considered his greatest contribution. Since 1994, Dylan has also published seven books of drawings and paintings, and his work has been exhibited in major art galleries.

As a musician, Dylan has sold more than 100 million records, making him one of the best-selling artists of all time. He has also received numerous awards including eleven Grammy Awards, a Golden Globe Award, and an Academy Award. Dylan has been inducted into the Rock and Roll Hall of Fame, Minnesota Music Hall of Fame, Nashville Songwriters Hall of Fame, and Songwriters Hall of Fame. The Pulitzer Prize jury in 2008 awarded him a special citation for "his profound impact on popular music and American culture, marked by lyrical compositions of extraordinary poetic power." In May 2012, Dylan received the Presidential Medal of Freedom from President Barack Obama. In 2016, he was awarded the Nobel Prize in Literature "for having created new poetic expressions within the great American song tradition".

Thomas Earl Petty (October 20, 1950 – October 2, 2017) was an American rock musician, singer, songwriter, multi-instrumentalist, and record producer. Petty served as the lead singer of Tom Petty and the Heartbreakers. He was also a member and co-founder of the late 1980s supergroup the Traveling Wilburys, and his early band Mudcrutch.

Petty recorded a number of hit singles with the Heartbreakers and as a solo artist. In his career, he sold more than 80 million records worldwide, making him one of the best-selling music artists of all time. In 2002, Petty was inducted into the Rock and Roll Hall of Fame. He died, aged 66, of cardiac arrest.