Michael Jackson has spent a third straight day at a medical facility in Los Angeles, fuelling rumours once again that he is being treated for skin cancer.

The 50-year-old music icon was swamped by photographers as he left the Bedford Medical building yesterday.

The visit came as The Sun newspaper claimed the singer had undergone a shave biopsy to remove potentially lethal growths on his body.

Michael will find out next week whether he needs to have spot radiation treatment, the newspaper said.

“It’s about waiting and praying now,” a source added.

The 50-year-old star has denied he is suffering from skin cancer. AEG president Randy Phillips said the singer was "in great shape".

Michael has been forced to delay his comeback gigs in London this summer by four days.

The opening show will take place on July 13, while the following three gigs have been moved to March 2010.

The postponement, which has been criticised by ticket holders, is not because of the singer's health, promoters said.

(by Jason Gregory)