Watch : Rod Stewart Halts Utah Concert to Use Oxygen Tank Onstage Amid Health StrugglesRod Stewart needs to focus on the rhythm of his heart. The 81-year-old announced he’s canceled his remaining tour dates in order to recover from a successful coronary stent procedure, which sees a mesh tube inserted into a clogged heart artery to help clear the path. As the update noted, “Unfortunately, this means he will be unable to continue his current tour dates.” In addition to the official statement, the “Maggie May” singer also took a moment to reassure fans personally. “I want to thank the doctors, nurses and everyone who has taken such wonderful care of me.”