Guy Fieri just rewrote the recipe for his hairstyle. The famed celebrity restaurateur, 58, had fans doing a double take after ditching his spiky icy blond locks in favor of a smoother, darker style that appears to be slow-roasted to perfection. "Hey there! After so many years of celebrating my birthday as Guy, I figured this year I'd celebrate it as just a guy. Happy birthday to me!" he said in the video posted to his Instagram grid on Thursday, January 22, captioning the clip, "New Year. New Guy. New Look.