The 'X Factor' and 'I'm a Celebrity' star said that it was "nerve wracking" losing his clothes for the photoshoot, but said he would "do anything" to raise awareness about cancer, reported Ace Showbiz.
"I've lost my dad and brother to cancer - it affects everyone somehow. My brother Oliver had Osteosarcoma (a form of bone cancer), once he was told it was terminal he was determined to live a normal life where he could, which is why he proposed to his girlfriend before he passed away at 19," he said.