The Ian Gillan Band is a side project band of former Deep Purple member Ian Gillan. Deep Purple is the name of a British rock group, and is also the name of a song composed by Peter De Rose, from which the band may have borrowed its name. ... Ian Gillan (August 19, 1945), Heavy Metal vocalist. ...
Ian Gillan was one of the foremost vocalists of the heavy metal style of rock that emerged in the 1970s, earning his greatest renown as a member of Deep Purple, though he also led bands named after himself.
All of that recording, along with virtually uninterrupted worldwide touring, took its toll on Gillan, who was hospitalized for exhaustion in October 1971 and who first voiced an intention to leave the band in August 1972.
Gillan's next solo album, Naked Thunder, was briefly in the British charts in July 1990.
Gillan became very exhausted doing all those recordings and touring all over the world.
Gillan finally told Deep Purple around October of 1972 that he was leaving, but said that he would stay until the tour dates were finished.
Gillan wanted to have a band named after him and wanted to record all of his songs, so he bought his own recording studio and signed a solo deal with Oyster Records.