Rihanna has reportedly paid £15,000 for an emergency haircut after hers was ruined in a sauna.

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The We Found Love singer – who recently changed her red locks to blonde – apparently flew her stylist first class to London from Los Angeles to fix her matted tresses.

According to The Sun, the 24-year-old star had been for a swim at her hotel and used its steam room and sauna before disaster struck.

A source said: “When she got out, her hair was tangled and matted. She slapped a load of conditioner on but it didn’t get through the mass.”

With a TV appearance on The Jonathan Ross Show scheduled for the next day, Rihanna decided that stylist Ursula Stephen was the only woman for the job.

The insider added: “She didn’t want to take the chance on an unknown.

“Because they were on such a tight schedule, they had to get her on the first flight. Rihanna didn’t care about paying a fortune.”

She was pictured yesterday (29.02.12) in London wearing a black cap in an apparent bid to hide the disaster.

The source explained: “Rihanna shoved a hat on to go to the studios. She was fine when she knew Ursula was on her way.”