John Du Cann was a British guitarist, singer and songwriter. He is best known as a member of the band Atomic Rooster, whose biggest hit "Devil's Answer" he wrote.
Early bands Du Cann played with included Wiltshire's The Sonics (not to be confused with the US band of the same name) and London's The Attack, who recorded the song "Hi Ho Silver Lining" a few days before the better-known version published by Jeff Beck. Du Cann was then a member of the psychedelic rock band Andromeda before joining Atomic Rooster. After leaving Atomic Rooster in 1971, he formed the band Daemon, which renamed itself Bullet, eventually performing as Hard Stuff. In 1974 he temporarily played with Thin Lizzy on two European tours.
In 1977, Du Cann recorded the solo album "The World's Not Big Enough", which remained unreleased until 1992. In addition to Du Cann, Francis Rossi from Status Quo served as producer, who also played guitar on some of the tracks. The studio musicians also included the Status Quo musicians Andy Bown (keyboards) and Pete Kircher (drums) as well as John McCoy (bass, known from Samson and Gillan) and Paul Hammond (drums - Atomic Rooster, Hard Stuff). In September 1979, Du Cann had chart success with the single "Don't Be A Dummy" (number 33 in Great Britain). The song came from the 1977 solo album and was used in a 1978 jeans commercial.
In 1980 there was a revival of Atomic Rooster. In 1982, Du Cann left the band permanently. During this time he had also played for Ginger Baker for three weeks.