The King of Pop's reps had long denied the black star used skin-lightening products to turn white, insisting he suffered from pigment altering condition vitiligo.

The warrants also show that four vials of highly potent anaesthetic Propofol were found during the searches.

The late star's doctor at the time of his demise, Dr. Conrad Murray, stands accused of administering Propofol to the King of Pop minutes before he went into cardiac arrest and died.

Murray has pleaded not guilty to one count of involuntary manslaughter.