Sir Rod Stewart, 79, was struck down with strep throat and Covid-19 and had to heartbreakingly cancel a number of his concerts in order for him to recover properly. After being branded a “workaholic” by his wife, Penny Lancaster, the Maggie May singer announced that he would be touring through Vegas again next year, despite noting he knew his “days were numbered”. The 79-year-old addressed his fans through his Instagram account twice to reveal that he would not be on stage, with the first one about his strep reading: “I’m desperately sorry to miss this 200th show celebration. Most people can w…