George Michael will make his stage comeback after his brush with death last year (11) by performing at the closing ceremony of the London Olympics.
Rumours of the star's involvement in the extravaganza have been rife for weeks, and now he has taken to to officially announce the news.
He writes, "Hey everyone, how are you. Spending most of the next week rehearsing like crazy for the Olympic closing ceremony...
"Obviously a bit nervous not having played for nearly a year, but rehearsals sounding great so far!"
When one follower asked if the show was supposed to be a secret, he replied, "Oh, and, secret? It's been all over the press for weeks, and I think you all needed to be put out of your misery!"
It will be the first time Michael has performed live in public since he was hospitalised at the end of last year with a life-threatening bout of pneumonia. The illness forced him to pull the plug on a string of concerts.
The Spice Girls are also expected to reunite for the ceremony - the first time they have performed together since 2007.
The closing ceremony of the London 2012 Olympic Games takes place on 12 August (12).