If Amy Winehouse was at all concerned about her second arrest in as many weeks, it certainly didn't show as she roamed the streets 4am this morning.

The troubled singer left her Camden home in the early hours to dash to a petrol station where she collected supplies including magazines and drinks, chatting happily to photographers during her outing.

With her trademark beehive wrapped up in a red bandanna with her husband's name emblazoned on it, the ever-erratic singer asked the paparazzi for suggestions for a new tattoo.

It was just hours after she visited a London police station by appointment yesterday afternoon before being arrested for possession of Class A drugs and later released on bail.

Winehouse was questioned over a video which allegedly showed her smoking crack cocaine.

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Late night dash: after being bailed last night, Amy Winehouse leaves her house at 4am to buy drinks and magazines from her local petrol station

The covert 19-minute clip was discovered on a memory stick which belongs to an alleged drug dealer, Jonny Blagrove and his girlfriend Cara Burton.

The Met confirmed that two people, a 34-year-old man and a 22-year-old woman, had been arrested on suspected drugs offences.

The couple have now been bailed.

Winehouse was originally questioned under caution in February and was due to return for further interview in June.

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Ink love: Amy was in good spirits despite her arrest, asking photographers for suggestions for a new tattoo

Wearing her heart in on her beehive: Amy wrapped up her hair in a red bandanna with her husband's name emblazoned across the side

That date was then brought forward and she was asked to go to Limehouse police station in East London yesterday.

This is the latest in a series of incidents between Miss Winehouse and the police.

The Grammy Award winner went voluntarily to Holborn police station just ten days ago to answer charges of common assault.

She was arrested for allegedly attacking a man while on a drunken night out in Camden.

The arrests could jeopardise her chances of performing in the U.S. as the singer has already been convicted of possessing cannabis and has had difficulty obtaining an American visa.

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Expert: Amy casts her eye over another tattoo aficionado

She has made several unsuccessful attempts to go into rehab. Last month her father Mitch Winehouse called for his daughter to be sectioned in order to bring her drug addiction under control.

A spokesman for Scotland Yard said the singer was taken into custody 'in connection with an investigation connected to footage passed to the Metropolitan Police on January 22'.

Winehouse's spokesperson released the following statement to U.S. website People.com: "Amy Winehouse voluntarily attended a London police station today by appointment.

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Dishevelled: Amy was pictured enjoying the Bank Holiday sunshine with a pal just days ago

Caught on camera: In January a newspaper published pictures apparently showing the singer smoking crack cocaine

A spokesman for Scotland Yard said: "Around 1pm today a 24-year-old woman from the Camden area attended a London police station by arrangement and was arrested in connection with the alleged possession of a controlled drug.

"She remains in custody. This is in connection with an investigation connected to footage passed to the Metropolitan Police on January 22."

Miss Winehouse's personal life has endured a traumatic few months.

The emaciated jazz singer is rumoured to have split from her jailed husband Blake Fielder-Civil amid reports that she is dating her assistant, Alex Haines, 22.

Fielder-Civil is awaiting trial at Pentonville Prison on charges of causing grievous bodily harm with intent and conspiring to pervert the course of justice.

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Meltdown: An angry Amy leaves her home last week. The singer's behaviour has become increasingly erractic

The singer with husband Blake who is currently awaiting trial for grievous bodily harm (GBH) and perverting the course of justice

However, last week the singer publicly declared: "I love Blake. Me and Blake are meant for each other, he's my man."

Miss Winehouse had recently been staying with friend and DJ Mark Ronson at his Oxfordshire home in Henley.

The pair have been chosen to record the theme tune for upcoming Bond film A Quantum of Solace.

However, Ronson said last week that the star was "not ready to record any music".

The performer has made several unsuccessful attempts to go into rehab.

Despite her addiction Miss Winehouse has amassed a £10 million fortune through her singing and sold more than six million albums.

Amy Winehouse's Arrest History

October 18 2007

Arrested with husband Blake Fielder-Civil in Norway after being caught in possession of cannabis. The pair are fined £350.

December 18 2007

Arrested again in connection with investigation into Mr Fielder-Civil's charges of perverting the course of justice. He attacked a pub landlord and then attempted to bribe him to drop the assault allegation. Miss Winehouse is released the same day on bail.

January 22 2007

A video of Miss Winehouse allegedly smoking a crack pipe is posted on The Sun's website. Footage shows the Back To Black singer claiming she has taken "six valium" before lighting up and inhaling from the pipe

February 2008

Miss Winehouse is interviewed under caution by police in connection with the video. She is not arrested but police confirm their inquiries are continuing.

April 25 2008

Miss Winehouse is arrested on suspicion of assault. She went to a central London police station voluntarily to be questioned over an alleged assault. She was accused of attacking two men in the early hours of the morning after a night out in Camden.

April 26 2008

Miss Winehouse is released from police custody after being cautioned for common assault.

May 7 2008

The star is arrested in relation to the video allegedly showing her smoking crack.