Robbie Williams has admitted that he could never be a nudist... because his penis is "too small to show off".
The singer, who proudly stated that he "had no problem being naked", said that the only thing holding him back from embracing nudist life was the size of his member.
Robbie, 48, appears naked on the cover of his upcoming XXV album, where he recreates the pose of Auguste Rodin's famous sculpture the Thinker.