Leonard Norman Cohen (21 September 1934 – 10 November 2016) was a Canadian Juno Award-winning singer-songwriter, musician, poet, and novelist. His work often explores religion, isolation, sexuality, and personal relationships. Cohen has been inducted into the American Rock and Roll Hall of Fame and both the Canadian Music Hall of Fame and the Canadian Songwriters Hall of Fame. He is also a Companion of the Order of Canada, the nation's highest civilian honour. In 2011, Cohen received a Prince of Asturias Award for literature. Cohen's writing process, as he told an interviewer in 1998, is “like a bear stumbling into a beehive or a honey cache: I'm stumbling right into it and getting stuck, and it's delicious and it's horrible and I'm in it and it's not very graceful and it's very awkward and it's very painful and yet there's something inevitable about it”.

Bob Dylan (born Robert Allen Zimmerman; May 24, 1941) is an American musician, singer-songwriter, artist, and writer. He has been an influential figure in popular music and culture for more than five decades. Much of his most celebrated work dates from the 1960s when he was an informal chronicler and a seemingly reluctant figurehead of social unrest. A number of Dylan's early songs, such as “Blowin’ in the Wind” and “The Times They Are a-Changin”, became anthems for the US civil rights and anti-war movements. Leaving behind his initial base in the culture of the folk music revival, Dylan’s six-minute single “Like a Rolling Stone” radically altered the parameters of popular music in 1965. His recordings employing electric instruments attracted denunciation and criticism from others in the folk movement.

Paul Frederic Simon (born October 13, 1941) is an American musician, singer-songwriter and actor. Simon’s fame, influence, and commercial success began as part of the duo Simon & Garfunkel, formed in 1964 with musical partner Art Garfunkel. Simon wrote nearly all of the pair’s songs, including three that reached No. 1 on the U.S. singles charts: “The Sound of Silence”, “Mrs. Robinson”, and “Bridge over Troubled Water”. The duo split up in 1970 at the height of their popularity and Simon began a successful solo career as a guitarist and singer-songwriter.

John Winston Lennon (9 October 1940 – 8 December 1980) was an English singer and songwriter who rose to worldwide fame as a co-founder of the Beatles, the most commercially successful band in the history of popular music. With fellow member Paul McCartney, he formed a celebrated songwriting partnership.