Tim McGraw "seriously" contemplated taking a step back from the music industry after dealing with some health struggles. "I've had four back surgeries and double knee replacements, just in the last couple of years," McGraw, 58, shared on Saturday, October 26, during a tour stop in Highland, California, per Fox News. McGraw went on to praise his surgeon, Dr. Nicholas Rose, who was in attendance - and also did his wife Faith Hill's hand surgery.