TROUBLED BRITNEY SPEARS suffered a shocking meltdown as she babbled incoherently and vomited on her dress at a photoshoot, it emerged last night.

Fears are growing for the troubled pop princess, and insiders warn that the shocking photos “could kill her career”.

Sources said the star behaved erratically after visiting the toilet during the photoshoot for OK! magazine, which took place in a Hollywood mansion last Thursday.

One witness said: “Britney was in a shocking state. She was babbling incoherently, talking in baby talk. She didn’t make sense.

“Britney appeared to be out of her mind. She went to the toilet and when she came back she couldn’t continue with the interview.

“Her eyes were rolling back, she was talking nonsense. She ate some food and vomited over her Gucci dress. She was a mess.

“She also seemed to be hallucinating, and kept saying strange and worrying things. The pictures are shocking and most of them are unusable.

“They paint a frightening picture and could kill her career. She looked like a young COURTNEY LOVE.”

Insiders said Britney, 25, refused to use a top make-up artist hired by magazine bosses and insisted on doing her own make-up, which was smeared and badly applied.

After the disastrous shoot, magazine bosses spent hours debating whether to show Britney as she was or produce a softer version of the photos.

But last night they confirmed they would print the photos unchanged.

Editor-in-Chief Sarah Ivens said: “OK! magazine spent a heartbreaking day with Britney Spears and witnessed first-hand an emotional cry for help that will leave you shocked and sad. This week, the truth will be told.”

The photoshoot disaster is the latest in a series of bizarre Britney outbursts.

Last week she allegedly slapped her mum LYNNE during a heated row over her sons SEAN PRESTON and JAYDEN JAMES. Hours later the star stripped to her bra and knickers on a Malibu beach to take a dip in the sea, screaming and posing for photographers.

In another bizarre incident, she was seen in her Mercedes with Sean Preston sat on her lap instead of in a car seat.

After pulling over, Britney’s bodyguard was seen carrying Sean and handing him to her friend, who placed him back in the rear of the car.

Then, a wild Britney ran at photographers ranting that their shots of her were illegal.

The singer went into rehab earlier this year after she famously shaved off her hair herself in a Los Angeles salon before attacking photographers with an umbrella.

Her ex JASON ALEXANDER has claimed Britney downed dangerous cocktails of drugs including cocaine and pure ecstasy, and attempted suicide by guzzling painkillers.

Britney has admitted trying drugs but said it was “a mistake”. Her spokeswoman was last night refusing to answer calls and emails.