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 the 20th anniversary of Rock Aid Armenia, Gillan together with Tony Iommi, Geoff Downes, and the project organiser Jon Dee were received by the Prime Minister of Armenia who awarded them with the republic's Orders of Honour. On 26 and 27 March 2010, in Yerevan, Gillan performed with State Philharmonic Orchestra of Armenia. At a press conference in Yerevan on 27 March, Gillan said he considers Armenia his spiritual motherland. In 2010, Ian Gillan met Tony Iommi, Nicko McBrain and Jon Lord, Mikko Lindström from HIM and Jason Newsted at a studio in London to finish recording a song called