LOS ANGELES, California (X17online) - Yesterday afternoon Britney Spears did some Christmas shopping on Robertson, hitting up stores like Lisa Kline Kids, and midway through the retail adventure we caught her sporting a spiderweb poncho. While this isn't exactly the most high fashion garment, we're guessing her boys loved it!

Britney appeared to be in a great mood, and she clearly spent some time getting ready before she went out. An X17 photographer on the scene tells X17online, "Britney looked like she wanted to be photographed - she did her hair and makeup and we caught her smiling several times. We were very surprised that she chose to shop on Robertson, as she knew there would be tons of photographers there snapping her picture."

Click here to see X17online's gallery of Britney Spears shopping on Robertson

Britney's agent/boyfriend Jason Trawick was later confronted by photographers when he nearly destroyed a cell phone belonging to a female paparazzo. Our X17 photog on the scene tells X17online exclusively, "The photographer dropped her phone, and Jason kicked it out of the way when he walked by! He was acting very aggressive and bystanders seemed shocked by his behavior."

Click here to see X17online's pictures and video of Jason Trawick speeding off after damaging a photographer's cell phone

After shopping on Robertson and showing off her short new hairstyle, Britney and her bodyguard headed to the closest Starbucks for an early evening pick-me-up. But rather than ordering her coffee and leaving, Britney took a time out in the bathroom and called the police, demanding that they escort her to her car.

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