Elton John is "doing extremely well" after a respiratory infection confined him to hospital.
His civil partner David Furnish said John was on the mend after he was taken ill last week.
Speaking at the Glamour Women Of The Year Awards David thanked the audience for their concern.
He said: "Thank you for your well wishes," he said. "He's doing incredibly well and recovering."
The 'Rocket Man' singer cancelled three Las Vegas performances after being admitted to Los Angeles Cedars-Sinai Medical Centre for a series of tests but went home the same day.
David handed out an award with actress Naomi Watts to fashion designer Donatella Versace at the event.
Sixty-five-year-old Elton told TMZ.com: "It feels strange not to be able to perform these 'Million Dollar Piano' concerts at the Colosseum.
"I love performing the show and I will be thrilled when we return to the Colosseum in October to complete the 11 concerts. All I can say to the fans is 'sorry I can't be with you."