Las Vegas-based Nancy Rosu filed her lawsuit in Clark County District Court in Nevada on January 18.

The legal papers claim Britney Spears employed Rosu to buy her clothes and that she would then reimburse her - but the singer allegedly stopped paying Rosu back in August.

Rosu is suing for breach of contract and intentional infliction of emotional distress and is seeking more than $50,000 in damages.

In other Brit-Brit news, Britney Spears has fallen out with her longtime companion Sam Lutfi after the pair broke into a screaming match outside her Hollywood mansion on Monday night.

Spears was seen arguing with Lutfi while sitting in his parked car at the front gate of the private Los Angeles community The Summit.

She later emerged from the vehicle in tears and sat on the street curb for 20 minutes, before calling her on/off boyfriend, paparazzo Adnan Ghalib, to pick her up.

However, it was Lufri and Britney's mom who took her to the hospital for mental treatment. 

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