Michael Jackson’s bad health has struck once again, with the star reportedly being carted around in a wheelchair due to severe back problems.

The Thriller star was snapped recently wearing pyjamas, a dread locked wig, a surgeon's mask, a baseball cap and sunglasses as he was pushed around Las Vegas by a minder.

One eyewitness tells The Sun: "There are constant rumours of a Michael Jackson comeback but it was shocking to see that in reality he is a shadow of his former self.

"He seemed too weak even to get out of the chair to cross the road himself. He stayed in the store for two hours and wheeled himself around in the chair the whole time.

"The skin on his hands was peeling, almost like a snake's. He kept his mask on all the time. His security man was at his side and nobody approached him. It is really sad."

Jackson has battled numerous health problems over the years, including lupus and vitiligo.