Photographic evidence: L.A. Derby Dolls with Gene and Sophie Simmons

Knee pads? Check. Mouth guard? Check

This past weekend the Derby Dolls, those banked-track roller derby enthusiasts, played an exhibition game at the Doll Factory. The event featured the best of the L.A. girls, the Ri-ettes, against Santa's Little Helpers, a group of flat-track skaters hailing from diverse locales like Arizona and Seattle.The cherry on top? Gene Simmons' daughter Sophie sang the national anthem while he accompanied her on guitar. We always knew Gene loved the ladies!