The world watched in horror as Britney Spears descended into madness, trawling the LA clubs night after night, hanging out with conniving hangers-on and losing custody of her kids – all of which culminated in the fallen superstar being rolled out of her Hollywood Hills home, strapped to a stretcher as she grinned maniacally for the cameras.

But now, that side of Britney is a distant memory for the singer, who is all set to lift the lid on that crazy time, in an upcoming documentary.

Entitled For The Record, the 90-minute MTV documentary set to air at the end of November, is for the star to set the record straight on the period of her life that left many Hollywood-watchers fearful she may end up killing herself.

Ahlan! reveals exactly what Brit thinks of her breakdown.

Shocked by her own behaviour

Looking back on the way she lived her life for the past year, Britney has expressed bewilderment at the things she got up to.

Along with her ever-changing entourage of assistants, the singer was constantly seen driving around LA for hours with a convoy of paps chasing her, stripping to her underwear in clubs, spending money in a frenzied fashion and speaking in a British accent – and Brit says even she is dumbfounded.

“I sit there and I’ll look back and I’m like, ‘I’m a smart person. What the hell was I thinking?!’” she revealed.

'I was driven by loneliness'

A child star, who hit the big time aged 17, and who often went on tour without her mum or a guardian to take care of her, Britney has admitted that she believes loneliness fuelled her crazy antics.

“Sometimes I think I get kind of lonely, because you don’t open the gate up that much, you know what I mean? You’re guarded… so I’m kind of stuck in this place and it’s like, ‘How do you deal [with it]?’”

And it was Brit’s loneliness and resentment that saw her estranged from her sister, hand her mum Lynne a restraining order and ditch her – now reinstated – manager, Larry Rudolph, the man behind the documentary idea.

'You don’t know the half of it…'

Brit has hinted that the parts of her life that were caught on camera, weren’t even half of the craziness that made up her bizarre life.

Sequestered in her Hollywood Hills mansion, while, according to Lynne Spears, shady hanger-on Sam Lutfi removed the batteries from her cars so she couldn’t leave the house, the Gimme More singer says it’s what the public didn’t see, that was more terrifying.

“I’ve been through a lot in the past two or three years and there’s a lot that people don’t know,” she hinted darkly. Adding about how she got through the days, “You just cope, and that’s what I do. I just cope with it, every day.”

Onwards & upwards…

MTV Awards: Brit scooped three MTV VMA awards for the video for her track Piece Of Me, and reunited with her reformed party pal, Paris Hilton.

New Album: Brit’s new album Circus comes out in early December, and the first track, Womaniser is already a top-seller on itunes.

Charity Work: A fresh-faced Brit donated Dhs36,000 to a New York school’s music program, last week, and told the student band who performed for her they would be “the first people I call” for her next world tour.

New Perfume: Her debut scent, Curious, made over Dhs360 million in it’s first five weeks, and Brit’s latest fragrance, Hidden Fantasy, is released soon and features the singer in the sexy ads.