David Justin Hayward is an English musician. He was the guitarist and frontman of the rock band the Moody Blues from 1966 until that group's dissolution in 2018. He became the group's principal vocalist and its most prolific songwriter over the 1967–1974 period, and composed several international hit singles for the band.

10cc are a British rock band formed in Stockport in 1972. The group initially consisted of four musicians – Graham Gouldman, Eric Stewart, Kevin Godley and Lol Creme – who had written and recorded together since 1968. The group featured two songwriting teams. Many regard Stewart and Gouldman as the predominantly pop songwriters, and Godley and Creme as the more experimental half of 10cc. Some have described Godley and Creme’s songwriting as featuring art and cinematically inspired writing.