The tubby 28-year-old has bought a rowing machine and has promised to give up fatty foods to lose his double chin.
He said: “I’ve got myself a rowing machine now. Life on the road is so unhealthy and I’m trying to get back to shape.”
He continued to the Star: “I find it really embarrassing watching myself on the TV as I’m always checking to see if viewers can get a glimpse of my double chin.”
It’s not yet clear whether Wilson’s recent onstage injuries were caused by excess weight on his ankles.