John was scheduled to take the stage tonight at the Tucson Arena in front of a nearly sold-out audience of approximately 8,800 fans, according to the Arizona Daily Star.

Now fans will have to wait until tomorrow evening. Same time, same venue, same unbearably hot Arizona city.

“Elton apologizes for the inconvenience caused due to his illness, but doctors assure him he will be fine for tomorrow’s evening performance,” Tucson Convention Center spokeswoman Kate Calhoun said. “If for any reason you are unable to attend the rescheduled Thursday concert, July 22, your tickets can be refunded at point of purchase.”

Click here to read the complete Arizona Daily Star article.