LaDonna Adrian Gaines (December 31, 1948 – May 17, 2012), known by the stage name Donna Summer, was an American singer and songwriter who gained prominence during the disco era of the late 1970s. She had a mezzo-soprano vocal range, and was a five-time Grammy Award winner. Summer was the first artist to have three consecutive double albums reach number one on the United States Billboard chart, and she also charted four number-one singles in the United States within a 13-month period.

Born into a devoutly Christian lower middle class African American family in Boston, Massachusetts, Summer first became involved with singing through church choir groups before joining a number of bands influenced by the Motown Sound. Influenced by the counterculture of the 1960s, she became the front singer of a psychedelic rock band named Crow and moved to New York City. Joining a touring version of the musical Hair, she spent several years living in West Germany, where she married Helmut Sommer, whose surname she adopted as her stage name.

Robert Nesta "Bob" Marley, OM (6 February 1945 – 11 May 1981) was a Jamaican singer-songwriter and musician. He was the rhythm guitarist and lead singer for the ska, rocksteady and reggae band Bob Marley & The Wailers (1963–1981). Marley remains the most widely known and revered performer of reggae music, and is credited with helping spread both Jamaican music and the Rastafari movement to a worldwide audience.

Marley's music was heavily influenced by the social issues of his homeland, and he is considered to have given voice to the specific political and cultural nexus of Jamaica. His best-known hits include "I Shot the Sheriff", "No Woman, No Cry", "Could You Be Loved", "Stir It Up", "Get Up Stand Up", "Jamming", "Redemption Song", "One Love" and, "Three Little Birds", as well as the posthumous releases "Buffalo Soldier" and "Iron Lion Zion". The compilation album Legend (1984), released three years after his death, is reggae's best-selling album, going ten times Platinum which is also known as one Diamond in the U.S., and selling 25 million copies worldwide.

Robert Peter "Robbie" Williams (born 13 February 1974) is an English singer-songwriter, vocal coach and occasional actor. He is a member of the pop group Take That.

Williams rose to fame in the band's first run in the early- to mid-1990s. After many disagreements with the management and certain group members, Williams left the group in 1995 to launch his solo career. On 15 July 2010, it was announced he had rejoined Take That and that the group intended to release a new album in November 2010 which became the second fastest-selling album of all-time in UK chart history and the fastest-selling record of the century.

Williams has sold over 70 million records worldwide, which ranks him among the best-selling music artists worldwide. He is the best-selling British solo artist in the United Kingdom and the best selling non-Latino artist in Latin America. Six of his albums are among the top 100 biggest-selling albums in the United Kingdom. He has also been honoured with seventeen BRIT Awards—more than any other artist—and seven ECHO Awards. In 2004, he was inducted into the UK Music Hall of Fame after being voted as the "Greatest Artist of the 1990s."