Photo: Getty ImagesIt seems there is a holiday for everything and today happens to be National No Beard Day, when America apparently observes a smooth face. To celebrate the occasion, here's what five rockers with famous beards look like without their facial hair grown out. 5. Kerry King of Slayer: Photo: Getty ImagesPhoto: Getty Images4. Scott Ian of Anthrax: Photo: Getty ImagesPhoto: Getty Images3. Zakk Wylde: Photo: Getty ImagesPhoto: Getty Images2. Rob Halford: Photo: Getty ImagesPhoto: Getty Images1. Billy F. Gibbons: Photo: Getty ImagesPhoto: Getty ImagesHappy No Beard Day, everyone!