Michael Jackson may have to undergo gruelling radiotherapy to help him battle skin cancer.
The King of Pop had been reported having spots of the disease on his upper body and pre-cancerous cells on his face.
The 50-year-old reportedly had a painful skin-shaving surgery in Beverly Hills to clear his flesh of potentially lethal growths on May 21.
And now, doctors were allegedly waiting to see if the icon needed gruelling spot radiation treatment.
"It's about waiting and praying now," the Sun quoted a source as saying.
The singer was due to kick off a much-awaited 50-show run at London's the 20,000-capacity O2 Arena on July 8.
The opening four nights of his This Is It UK tour were postponed. Concert promoters AEG Live said the singer needed more time for dress rehearsals.