Conversation so far:
Why is 1971-1975 of Blue Öyster Cult's career called 'the black and white years'?
As the three albums during this formative period all had black-and-white covers, the period of their career has been dubbed the 'black and white years'.
Did Blue Öyster Cult have any hits from their self-titled album?
Did Blue Öyster Cult have any tours?
Blue Öyster Cult toured with artists such as the Byrds, Mahavishnu Orchestra and Alice Cooper.
Was the Blue Öyster Cult album all rock music?
Did Blue Öyster Cult tour with rock bands?
Blue Öyster Cult toured with the Byrds, Alice Cooper, and the Brain Surgeons.

Question: Did they tour with the legend Ozzy Osbourne or his band Black Sabbath?
Self-contained rewrite: Did Blue Öyster Cult tour with the legend Ozzy Osbourne or his band Black Sabbath?