Britney's bizarre u-turn: Singer flips at paparazzi before taking photographer on a date

The 26-year-old singer jumped into a paparazzo's car, only minutes after hurling expletives at a group of photographers.

Britney's odd behaviour comes just days after finding out her 16-year-old sister was pregnant.

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Jamie-Lynn, star of Nickelodeon's kids show Zoey 101, is expecting her first child in June with 18-year-old boyfriend Casey Aldridge.

In the early hours of Sunday morning, Britney parked her white Mini Cooper in a busy Los Angeles street, where she was swiftly joined by a swarm of 20 photographers.

However, Britney was not in the mood to be photographed and had her own camera, insisting she wanted to snap a mural on the wall.

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As the group huddled around Britney for a close-up, the furious pop star screamed abuse: "Move so I can try and take a picture... I'm just like you.

"I can't take a picture with you motherf***** standing there. You stupid f****. Move. Shut up."

After giving up her photography attempts, Britney and her assistant stormed back to her car, with the singer smacking her camera off a neighbouring vehicle.

After zooming off, just 15 minutes later, Britney was back... and her mood had lifted.

Beaming Britney amazed the paparazzi she has been abusing a short time earlier by gushing: "I love you guys... I'm just in a bad mood. It's not like me to get mad at you."

She told photographers she had lost her memory card and was grateful when they all helped her to find it.

After retrieving the card, Britney stunned onlookers when she jumped into the car of a British photographer - known as Asnan - and sped off.

The pair were soon spotted at a local drugstore, where a beaming Britney led Asnan into the store while holding hands.

Britney caused a commotion in the store trying to get into the bathroom, and started speaking in a British accent, shouting "oh my Lord".

After driving away from the store separately, Britney popped home to "freshen up" before the pair rendezvoused outside the Peninsula Hotel, where they spent the remainder of the night.

Arriving at the Peninsula, Britney had changed out of her red top and jeans and was sporting an ill-fitting leopard-print dress and pink wig.

Asnan briefly left the hotel at 4am to buy cigarettes and told waiting photographers outside he was "just having lunch" with the star.

After returning a short time later, Asnan remained at the hotel until 10.25am on Sunday morning, but refused to explain what he had been doing with Britney.

When asked by American magazine Us Weekly about his relationship with Britney, Asnan said: "We are just friends. She was just a little upset, pretty much about everything."

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This incident follows a year of bizarre behaviour from the pop star.

Since splitting from her ex-husband Kevin Federline a year ago, Britney has shaved her head, been photographed swimming in her underwear and has repeatedly been spotted out partying in Hollywood and New York City.

In October, Britney lost physical custody of her sons Sean Preston, two; and Jayden James, one, and is currently fighting Federline in the courts.