In 1969 initial Genesis drummer Chris Stewart had been replaced on drums by John Silver, who in turn gave away to John Mayhew shortly after the recording of the bands third Decca-single "Where the Sour Turns to Sweet".



With John Mayhew on drums Genesis released "Trespass" late 1970. However, soon after he was replaced by ex-child actor and 'Flaming Youth'-drummer Phil Collins. Now the classic Genesis line-up was in place and the band went on to gather their place in the history of rock.