David Coverdale to replace Ian Gillan. Coverdale had fronted a local group called The Government, which had played with Deep Purple on the same bill in 1969, so he and the band were familiar with one another, and after sending a tape and later auditioning, Coverdale was admitted into the band, with bassist Glenn Hughes adding his own vocals as well. In February 1974, Deep Purple released their first album with Coverdale and Hughes titled "Burn" which was certified Gold in the US on 20 March 1974 and in the UK on 1 July. In April 1974, Coverdale and Deep Purple performed
Ian Gillan and Barnacle were quickly replaced by Bernie Tormé and by former Episode Six bandmate Mick Underwood, after Gillan saw Torme playing with his punk trio. This band had a more high-powered hard rock sound, and the release of "Mr. Universe" in October 1979 saw Ian Gillan back in the UK charts, although the independent record company the album came out on – Acrobat Records – folded soon after the album was released, prompting a contract with Richard Branson's Virgin Records. In Christmas 1979, Gillan was visited by Blackmore, who offered him the position of lead vocalist in Rainbow. Gillan declined