Costadinos Contostavlos (born 11 June 1987), better known by his stage name Dappy, is an English singer-songwriter, rapper, and actor. He is best known for being the lead singer of the Camden-based Grime/hip hop/R&B trio N-Dubz, with his cousin Tulisa and their friend Fazer. He is known for his slightly unusual dress sense and his love for what he describes as "eye-catching headwear". His trademark is wearing a selection of woolly chullos (sometimes referred to as "Dappy hats"), turning up one or both of the ear-flaps of the hat.