Cheap Trick bassist and co-founder Tom Petersson reports he is doing “much better” roughly three months after undergoing open heart surgery. "I'm doing a lot better, which is not saying much. I came out of the operation — I had open-heart surgery on March 1st, so I've been convalescing here at home, and I'm feeling much better and just following my doctor's orders,” the rocker explained during an interview with Detroit radio station WRIF. Petersson admitted he continues to ask his doctor questions, even months after the operation. “What can I do? Has anything come loose yet? Do you have to open me back up? That’s your biggest fear. I do not wanna have to go through that again — now that I know what happens."