“We were a work in progress all the time,” Tom Johnston says, recalling the Doobie Brothers’ first era ... So I went and grabbed [drummer] John [Hartman], who was in the bathroom ...

FILE – Tom Johnston, from left, Michael McDonald, John McFee and Pat Simmons of the Doobie Brothers pose for a portrait at Show Biz Studios in Los Angeles on Aug. 17, 2021. (AP Photo/Chris Pizzello, ...