George Michael has pulled out of his concert tonight at the Royal Albert Hall, after receiving advice from doctors.
The singer performed last night to a packed audience, but could be heard struggling with his voice a few times through the evening.
Michael is in the middle of the Symphonica tour, playing a selection of cover songs as well as his own hits, with the backing of a full orchestra.
The singer has released a statement, which reads:
With great regret, George Michael has been forced to postpone his concert tonight (Wednesday 26th October) at the Royal Albert Hall, London. A Doctor visited George this afternoon and confirmed he is suffering from a viral infection and has a high temperature, and on medical advice he has been advised that he cannot perform tonight to allow him time to recover before his next concert at the Royal Albert Hall on Friday 28th October.
George has performed 35 shows to date as part of his "Symphonica - The Orchestral Tour". The tour commenced in late August and George had his first UK concert last night in London.
A spokesman for George Michael said that "he is disappointed that he cannot perform tonight's concert, but he has been advised to rest. He received a tremendous reaction from the audience last night and is very sorry that he has had to postpone".
The promoters have asked ticket holders for tonight's concert to retain their tickets. Further announcements regarding a replacement date will follow.
All other dates on "Symphonica - The Orchestral Tour" will not be affected.
Click here for George Michael Symphonica Tour info and tickets