John Rzeznik was getting in shape at the end of June.The Goo Goo Dolls hadn’t toured since 2019 and were set to start a tour July 15. The long running alt rock band had played a few festivals and private engagements over the last two years and Rzeznik was paying the price of that inactivity.“I had to do three shows in a row the other day,” he said. “I was, ‘Damn, I’ve got to get back in shape. It’s really hard to sing for two or three hours. Singing is more athletic than people think. It takes a lot of practice and rehearsing. I have to warm up my voice, do core exercise and sprints to get my