Britney Spears is demanding a hotel room that has never been smoked in for the UK leg of her European tour.

The Womanizer singer is said to have made several requests to London's Dorchester Hotel, where she will stay next month when her tour reaches England, including humidifiers in every room, Marilyn Monroe DVDs and 100-watt light bulbs.

Spears has also asked for celebrity magazines, women's novels and fresh flowers that she will arrange herself.

A source told Britain's Daily Star newspaper: "Britney may only be staying in the city for two weeks but she knows exactly what she wants.

"She'll be bringing all her own pillows for ultra-comfort and her security will sleep outside her suite every night."

Britney has requested tickets for West End theater productions, as well as a place to horse-ride and a map of running routes around nearby Hyde Park.

The Circus Starring Britney Spears will appear at London's O2 arena for eight shows between June 3 and 14.