September 4th at S&T Bank Music Park would have been our first chance in decades to see the Doobie Brothers' Michael McDonald, Tom Johnston, Patrick Simmons, and John McFee on the same stage together...yep, there was a time that both original singer Tom Johnston, and his eventual replacement, Michael McDonald, actually were in the band at the same time...Pat Simmons tells the story of how in 1975, doctors told Johnston he had to take a year-long break from the band because of a bleeding ulcer....Pat says he told the band about a guy named Michael McDonald who was a side vocalist for Steely Dan at the time....he called McDonald, who was kinda vague and non-committal about hooking up with the Doobies..hear Pat Simmons tell the story, plus see the chronology of what band members were together when...btw: both Tom Johnston and Michael McDonald sang with the band when McDonald first joined, resulting in the hit album "Takin' It to the Streets"....here ya go: https://ultimateclassicrock.com/doobie-brothers-michael-mcdonald/