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The singer was filmed driving into the parking garage on Friday night and being refused entry via the hotel's intercom.
Officials inside could be heard repeatedly stating: "I'm sorry, you're not authorized to come in."
They remained unmoved by waiting paparazzi, who yelled: "She's Britney Spears, damn it! She can come in. Let her in!"
Spears eventually drove out of the garage, telling photographers: "Party at my house tonight!"
She was seen leaving the venue the previous night after claiming that she was too ill to appear in court to be quizzed by her ex-husband's lawyers.
> Click here for our guide to Britney's essential singles.
