Sir Elton John's friend Gary Barlow says despite health issues, the musician "will never retire".
Although the 70-year-old singer was forced to cancel a number of upcoming shows after a rare and potentially deadly bacterial infection landed him in intensive care for two days last month, Barlow believes John will never stop working.
The Take That star told the Daily Mirror: "He loves gigging, he loves being out there. He's on the mend. You can't hold him down, he's crazy. It's never time for him to retire.
"I've sent him a few emails and I believe he's fine. I sent him our best. You can get those horrible kinds of diseases on holiday.
"He's just been unfortunate. He's toured the world since 1971, so he's been lucky to make it this far."