Amy Winehouse tours on junk food, crisps...and the same outfit for THREE days

Last night the singer was seen leaving her gig at Berlin's Tempodrom concert hall hugging a large bag of potato chips, dressed in the same jeans and ballet pumps as the previous night.

Thankfully, Amy did change her top, but the rest of the outfit looked pretty much the same as the night before.

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Rewind 24 hours, the Rehab singer arrived in Berlin on Sunday, without husband Blake Fielder Civil, and was seen picking up a takeway from McDonald's on her way back to her hotel, dressed in what looks like the same jeans, leather jacket and a white vest.

Despite her penchant for the calorie-laden food, Amy still looks underweight, and unhealthy as she battles her addictions.

A bust-up with husband Blake saw Amy drown her sorrows prior to the gig leaving minders worried that the 27-date European tour would be ruined before it had even started.

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But Blake's unannounced arrival in Berlin yesterday, sparked crisis talks among Amy's tour staff, who had hoped that his absence would leave her alone to focus on her show without distractions.

A source told The Sun: "I hoped Blake wouldn't come today but he has and there's nothing we can do about it.

"Something has to give but she has to make that decision herself. For now we just have to deal with it."

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On the first night of her tour, the troubled 24-year-old made a rocky start as she stumbled over the lines of the opening two songs.

But she pulled it back, showcasing her incredible vocals on You Know I'm No Good, Back to Black and her cover of 60s hit Cupid.

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Meanwhile, Amy is reported to have taken up one-on-one yoga tuition from David Sye, the Camden-based guru who has a string of famous clients, including Sadie Frost.

Sye, a former journalist - and the son of legendary crooner Frankie Vaughan - is covered in tattoos and he practises his brand of yoga just a stone's throw from Amy's home in Camden.

A source said: "Amy has been having regular one-on-one sessions with David for five weeks now. It's a big step for Amy and one that could play a huge role in her eventually beating her demons."

"She pops into his studio for sessions but has also been calling him regularly on the phone for spiritual advice.

Amy's father Mitch has been outspoken over her daughter's health - revealing that he had written a speech for her funeral.

He said: "I wrote a eulogy for Amy myself last month. When she had her seizure and was taken to hospital, I really thought that could be it. The doctors told us even a whiff of another drug could kill her."

In some good news, Amy looks set to knock the Sugababes off the top spot with her Zuton's cover Valerie.

If successful, the Mark Ronson produced track will be her first UK No.1.