Conversation so far:
What is erurythmics Hiatus?
After strenuous years of touring and recording Eurythmics disbanded
Why did the group Eurythmics disbanded?
a rift had developed between the duo
What happened after the group Eurythmics developed a rift and disbanded?
Dave Stewart began writing film soundtracks and Annie Lennox took time off from her career to have a baby and to consider a life after Eurythmics
Was Dave Stewart successful becoming solo writing soundtracks?
Dave Stewart had a big international hit in 1990 with the instrumental track Lily Was Here“
Did Dave Stewart produced any albums after he had a big international hit in 1990 with the instrumental track Lily Was Here?
Dave Stewart formed a band called Dave Stewart and the Spiritual Cowboys

Question: When did Stewart form this band?
Self-contained rewrite: When did Stewart form the spiritual cowboys band?