Singer Amy Winehouse has pulled out of this weekend's V Festival and cancelled all her touring commitments for August, her spokeswoman said.
"Amy Winehouse is putting all her touring commitments for this month on hold until further notice in order to address her health issues," spokeswoman Tracey Miller said in a statement last night.
"Amy will now not be performing at this weekend's V Festival in Chelmsford and Staffordshire. Her family has requested that the media respect Amy's privacy at this time. There will be no further comment."
Winehouse, 23, was taken to hospital last week for "severe exhaustion".
Reports said she had allegedly taken a cocktail of heroin, cocaine, ketamine and alcohol. Winehouse, whose hits include the single Rehab, was then said to have checked into the Stg £10,000-a-week Causeway treatment centre in Essex.
She left the centre on Wednesday but insisted last night that she had not quit rehab and had simply popped home to pick up a guitar.
Interviewed by Radio 1 outside her home in Camden, north London, yesterday, the painfully thin singer claimed: "I'm fine. I've put on half a stone and I feel fine." Asked if newspaper reports of her drug abuse were true, she replied: "I wouldn't say so, no."
She was then driven away by a female friend and gave a thumbs up to fans. Last night her husband Blake Fielder-Civil admitted Winehouse has "a few problems" but said: "She's determined to get well. It's been a difficult time for me and Amy, the fact is we are still together and going back to the place tonight.
"We only came back to get a guitar, but of course in the paper that's interpreted as we're both so weak we left after three days. It's the inevitable way the papers are trying to put you down when you're trying to do something positive.
"The main thing is that me and Amy are getting better. Don't worry, she's being looked after. We're going back to this retreat. She's determined to get well. It's not as bad as everyone thinks but she's fine, she's loved and looked after."
Asked about reports of the couple's drug addictions, Fielder-Civil said: "I wouldn't believe it. There's a few problems there but certainly nothing of the magnitude that my mum was falsely quoted as saying."
His mother Georgette was reported as saying that Winehouse confessed to heroin and cocaine addiction and told her: "It's silly, but you just get carried away." The singer's record company says she is suffering from "severe exhaustion".
