Janet Jackson has been dubbed a diva by staff at a London radio station for demanding chilled Fijian spring water before an interview. The singer reportedly sent assistants brandishing bottles of the water to Capital Radio's studios an hour before the interview so they could be chilled. When Jackson arrived, the water was then checked using a thermometer before being handed to the star. A station worker tells London's Evening Standard, "It was simply unbelievable the lengths she went to for a cold glass of water. "How anyone can tell the difference between a standard bottle of mineral water and some from a Fijian spring beggars belief."