Britney Spears abandoned her car on Sunset Boulevard during rush hour last night.

The troubled pop star, who got a flat tire while she was driving along the busy Los Angeles street, continued to drive for two miles without her lights on and even passed a gas station before she pulled over and deserted the vehicle.

Los Angeles Police Department spokesman Mike Lopez said: "Britney Spears' car was impounded because it was blocking the roadway."

Britney now faces a $104 towing fee, plus $32 for every day it remains in the towing yard.

If the 'Toxic' star doesn't collect the vehicle within 30 days, it will be put up for auction.

Rather than being left stranded, the singer was given a lift away from the scene by a member of the paparazzi who had been following her. The 26-year-old was driven back to her Beverly Hills, California, home by the snapper, who is an employee of celebrity picture agency X17. The star left the house again 20 minutes later in her assistant's car heading towards the Four Seasons Hotel - then deciding on The Peninsula Hotel instead.

The incident has sparked further fears for the singer's mental health.

The 'Gimme More' singer was taken to Los Angeles' Cedars-Sinai Medical Center following a three-hour stand-off with police which began at 8pm on Thursday after she refused to return her sons, two-year-old Sean Preston and one-year-old Jayden James, to ex-husband Kevin Federline.

Meanwhile, Britney has revealed a video of her wearing just a jumper, smoking a cigarette and sharing a lollipop with her paparazzo boyfriend Adnan Ghalib.

Another piece of footage, filmed at the weekend, shows the pair holding hands and kissing on a sofa.

The alleged couple went out for a romantic walk in Los Angeles yesterday and happily posed for photographers who Adnan is believed to have tipped off.

At one point, Britney suggestively fed him ice cream to the delight of the throng of paparazzi.

The 'Piece of Me' star is said to be planning to film a tell-all confession about what happened last Thursday, which she and Adnan will sell to the highest bidder.

Britney then drove her assistant Carla's drove Toyota Camry to the hotel.