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The singer has been nominated for six gongs and reportedly wants to sort her life out in time for the ceremony in February.
She will embark on a one-week rehab and detox course in Israel next month, but friends claim she wants to enjoy a wild Christmas bash before beginning her treatment.
A source told The Sun: "Amy has agreed she will sort her life out in the new year. But she's going to throw a party over Christmas – which will probably be a messy affair."
Winehouse has struggled to cope with husband Blake Fielder-Civil's arrest on a trial-fixing charge and the news that he will be spending the holiday behind bars.
The source added: "Things have got worse for Amy since Blake was jailed. She's been taking more drugs that ever. It's become like having a cup of tea. But she wants to give the performance of her life in LA."
> Winehouse calls off remaining engagements in 2007
