By Amber Goodhand - Breaking Celebrity News Reporter

Bee Gees front man Robin Gibb stepped out on Monday looking extremely thin and sick, and Breaking Celebrity News has the shocking photos.

The 61-year-old singer was taken to Radcliffe Hospital in Oxford on October 13 for inflammation of the colon, and his twin brother Maurice, who was also a member of the Bee Gees, died of an intestinal disease in 2003.

Robin also underwent emergency abdominal surgery last year to remove part of his intestine after he experienced agonizing pain at a concert in Belgium.

And now fears are escalating for Robin after he missed a meeting with British Prime Minister David Cameron, and instead appeared on ITV’s Alan Titchmarsh Show and apologized on camera to Cameron.

Speculation is rampant that Robin’s failing health was the reason for his missed meeting.

The photos speak for themselves, as the singer has sadly dropped a lot of weight leaving him frail and gaunt — similar to photos of Apple co-founder Steve Jobs shortly before he passed away.