Ian Gillan band, who had not had any holiday since their initial rehearsals at Hanwell. He started drinking, and relationships between him and the rest of the band became strained, particularly with Blackmore. On 6 November 1971, he collapsed with hepatitis while waiting to board a plane in Chicago, cancelling the remainder of a US tour. By December 1972, having recorded "Machine Head", "Made in Japan" and the yet to be released "Who Do We Think We Are" with Deep Purple, Gillan finally decided the workload had driven him to exhaustion. Unlike some band members, he was unhappy about "Made in Japan",
Ian Gillan also played at Dunstan's Hall, Ronnie and the Hightones, who renamed themselves as the Javelins after he joined. The band played covers of Sonny Boy Williamson, Chuck Berry, Jerry Lee Lewis and Little Richard, and were early customers of then-local music shop owner Jim Marshall. The Javelins disbanded in March 1964, with guitarist Gordon Fairminer leaving to join what eventually became the group Sweet. After the Javelins, Gillan joined a soul band, Wainwright's Gentlemen, which included another future Sweet member, drummer Mick Tucker. The band recorded a number of tracks including a cover of The Hollies hit "Ain't That Just