City Boy were an English rock band formed in the mid-1970s. They were originally called Sons of Doloyne, then Back in the Band, and finally City Boy. They featured strong melodies, clever lyrics, complex vocal arrangements, and heavy guitars. The band consisted of Lol Mason, Steve Broughton, Max Thomas, Chris Dunn, Roger Kent, Mike Slamer, and later, Roy Ward. Their most popular songs were "5.7.0.5.", "What a Night", "The Day the Earth Caught Fire", and "Speechless".