Sir Elton John has tested positive for COVID-19. The 74-year-old singer has been forced to cancel two upcoming shows in Dallas, Texas, after being diagnosed with the virus. A statement explained: “It is with great regret that the Farewell Yellow Brick Road tour dates in Dallas set for Tuesday, January 25 and Wednesday, January 26 must be postponed due to Elton recently testing positive for COVID-19. “Fortunately, Elton is fully vaccinated and boosted, and is experiencing only mild symptoms. Fans should hold on to their tickets as they will be honoured at the rescheduled dates to be announced s…