Sir Rod Stewart, 79, is currently on the mend from contracting strep throat and Covid-19 within a matter of days, leaving the pop legend being forced to cancel a series of concerts. Stewart has been touring around America and recently revealed the news that he would be returning to Vegas next year for his “Encore” tour, noting he was having “too much fun”. The star is aself-confessed “workaholic” who has no intention with of slowing down, leaving his wife, Penny Lancaster to note to HELLO! magazine: “He loves what he does so much and will never retire. “He’s a workaholic and constantly on the …