CALIFORNIA: Thriller singer Jacko, 50, visited a top dermatologist in Beverly Hills, California, every day last week as he battles the disease.

It is not known what was in the bag, carried by a minder.

It read: “Diseases of the skin, skin cancer and skin cancer chemosurgery.”

The star has had a shave biopsy op to remove dangerous growths and to see if he needs more treatment.

He has also seen experts to minimise scarring.

A close source said: “He’s putting on a brave face but is absolutely terrified.”

Jacko is due to play 50 gigs at London’s O2 this summer, but the opening night has already been postponed to July 13.