Roots of Yes

The Buggles are an English new wave band formed in London in 1977. Their best-known lineup was as a duo of singer and bassist Trevor Horn and keyboardist Geoff Downes, with Bruce Woolley briefly contributing as a member from 1977 to 1979. They are best known for their 1979 debut single, "Video Killed the Radio Star", which topped the UK singles chart and reached number one in 15 other countries.

Simon & Garfunkel were an American musical duo comprising the singer-songwriter Paul Simon and the singer Art Garfunkel. They were one of the best-selling musical acts of the 1960s. Their recordings include three U.S. number-one singles—"The Sound of Silence" and the two Record of the Year Grammy winners "Mrs. Robinson" and "Bridge over Troubled Water"—as well as "Homeward Bound", "I Am a Rock", "Scarborough Fair/Canticle", "A Hazy Shade of Winter", "America", "The Boxer" and "Cecilia".

Faces are an English rock band formed in London in 1969. They formed after Small Faces lead singer and guitarist Steve Marriott left to form Humble Pie, and the remaining Small Faces—bassist Ronnie Lane, drummer Kenney Jones, and keyboardist Ian McLagan—recruited lead singer Rod Stewart and guitarist Ronnie Wood, both formerly of the Jeff Beck Group, and shortened the band's name to Faces.

Buffalo Springfield was a Canadian-American rock band formed in Los Angeles in 1966 by Canadians Neil Young, Bruce Palmer and Dewey Martin and Americans Stephen Stills and Richie Furay. The group, widely known for the song "For What It's Worth", released three albums and several singles from 1966 to 1968. Their music combined elements of folk music and country music with influences from the British Invasion and psychedelic rock. Like the contemporary band the Byrds, they were key to the early development of folk rock. The band took their name from a steamroller parked outside their house.

Yusuf Islam, commonly known by his stage names Cat Stevens or Yusuf/Cat Stevens, is a British singer-songwriter and musician. He has sold more than 100 million records and has more than two billion streams. His musical career has explored folk, rock, pop, and, later in his career, Islamic music. Following two decades in which he performed only music which met strict religious standards, he returned to making secular music in 2006. He was inducted into the Rock and Roll Hall of Fame in 2014. He has received two honorary doctorates and awards for promoting peace as well as other humanitarian awards.