Now that looks like a nice young man, Amy!

Amy was seen leaving her Camden home last night with clean-cut singer Tyler James to meet up with her celebrity pals at St Martin's Lane hotel nightclub Bungalow 8.

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Clean-cut: Amy Winehouse stepped out with a handsome young man last night, singer Tyler James, as the pair partied at nightclub Bungalow 8 in London's West End

Dressed in a black t-shirt, dark jeans, and her trademark ballet pumps, Amy and Tyler, who last released a record in 2005, partied at the swish West End nightclub with celebrity pals Mark Ronson, Kelly Osbourne, Peaches Geldof and Kimberly Stewart until the early hours of this morning.

However, despite his prescence the singer appears to be making a return to the increasingly chaotic lifestyle she led before checking into rehab for just two weeks.

It adds worrying credence to reports that she has lapsed back into her previous drug-fuelled lifestyle.

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Chaotic: Amy appears to have returned to her chaotic nocturnal lifestyle as the singer partied until 4am and then went back to her home with a group of celebrity pals including Mark Ronson

Peaches Geldof with new beau Horrors musician Farris Rotter, and Amy's producer Mark Ronson and a mystery friend

After leaving the club, Amy and her pals drove back to her north London home and stopped off at the newsagents at after 4am for her usual supply of sweets and munchies.

And the singer also seemed intrigued by a book called 'Amy, Amy, Amy: The Amy Winehouse Story' which she added to her list of purchases.

Amy's return to her late night lifestyle 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.

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The singer who recently won five Grammy Awards, is also said to self-harming again as last week she was seen with red marks on her upper arm.

She has also been seen out with a swollen and bruised left cheek, fuelling speculation the bruising was caused by a hard knock to her face.

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Pit-stop: The singer stopped off at a newsagents near her Camden home to pick up her usual late night snacks and intriguingly a book called 'Amy, Amy, Amy: The Amy Winehouse story'

But a spokesman for Amy insisted she had been diagnosed with highly-contagious impetigo and was taking antibiotics, adding "she may have to stay home alone for the next few days."

Read all about it: Amy picks up some lightweight reading matter on her way home

But not even a case of highly-contagious impetigo could stop Amy Winehouse from partying, or visiting incarcerated husband Blake Fielder-Civil in jail on Sunday after missing his court appearance last Friday.

The singer left her home on the weekend to visit husband Blake in Pentonville prison despite still having a noticeably swollen face.

But doubt was cast over whether such bruising and swelling can be caused by a skin irritation.

Dr Hilary Jones told the News of the World: "I think the most likely explanation is a direct blow, either accidental or deliberate.

"It could be she's walked into a door or fallen over — which is very likely with her drug habit."

Record bosses are said to be ordering her back to rehab after being reported to be back on drugs again.

Meanwhile police will be taking no further action against Amy in connection with their ongoing investigation into an allegation of an attempt to pervert the course of justice, her publicist has announced.