He has talked about re-inventing his image, and the suspicions that he may turn into a Sinatra-style crooner were reinforced when he broke into an impromptu rendition of Ol' Blue Eyes' One For My Baby.

BBC: Robbie Williams

Her hair obscured her face somewhat, and my migraine occluded the edges of my vision, but still, I could see: same unzipping of wrinkly boots, same taking off of same baby blue coat with jumbo charcoal buttons, same tucking behind ears of dyed cornsilk blonde hair.

NPR: Excerpt: 'Atmospheric Disturbances'