Amy Winehouse bizarre night out as friends claim she's 'back on drugs'

The 24-year-old singer's was back to her bizarre antics last night as she made a late night run for a sugar fix at her local store, later roaming around London's Camden with just one shoe on.

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She was joined by celebrity hairdresser Alex Foden, the man responsible for her trademark beehive, and earlier, she'd spent the evening with 'Good Blake' - also known as teetotal photographer Blake Wood.

It comes amid reports the Rehab singer is back on drugs as she struggles to cope with the absence of husband Blake Fielder-Civil, who has been in Pentonville Prison since November.

Amy, who recently five Grammy Awards, is also said to self-harming again and last night she was seen with fresh red marks on her upper arm.

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Friends are said to be increasingly concerned about the tormented performer, who has allegedly told friends: "I can't go on."

She is said to be indulging in a dangerous cocktail of cocaine, ecstasy, cannabis and alcohol after managing to stay clean for less than ten days.

The Sun quoted a friend as saying: "On the first night in rehab she begged a friend to take her in some drugs,"

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"After that she did not take anything for a week to ten days. But that was just about trying to get her to the Grammys.

"Now we're back to the dangerous levels of before."

The friend recalled a recent incident in which Amy deliberately burnt her hand with a lighter while screaming: "My life is a shell of what it was."

The insider continued: "One minute she'll be fine, the next she'll be in a heap on the floor, screaming she can't go on."

Before her strange night out, Amy has spent the day moving out of her East London flat, where she was seen clutching a framed photograph of herself and her husband during happier times.

The singer, who has been living in a ritzy hotel since leaving rehab, is reportedly considering moving to a property in Buckinghamshire.