Annie Lennox is recuperating from spinal surgery after a back spasm forced her to leave an Aids conference early.
The former Eurhythmics singer had been flown home from the International Aids conference in Mexico after suffering the injury but has undergone a successful operation, her representative has confirmed.
"The surgery [to release an impinged nerve] went as planned, and Annie is now recuperating at home," said Roger Widynowski.
"Annie would like to send her thanks and appreciation to all who have sent their well wishes in the past few days."
The singer, 53, had explained on her blog last week that the injury had given her "more pain than I've ever experienced in my life" and made her left foot "totally numb".
And after being wheeling off the plane upon her return to the UK, the Aberdeen-born star wrote: "A first I must say!"
She went on: "Felt a bit like Elizabeth Taylor Am now sitting up in bed with my left foot like a dead fish, freezing and numb".
A retrospective album, due for release on September 15th, has now been postponed until Spring 2009, her management confirmed.
"Some of my plans and schemes have had to be put on hold because there is not much I can do if I can't walk properly," Lennox added.