Costadinos Contostavlos, better known by his stage name Dappy, is a British rapper and singer. He is the lead singer of the Camden-based hip hop and grime trio N-Dubz, with his cousin Tulisa and Fazer. He was known for his lack of dress sense and his love for what he describes as "eye-catching headwear". His trademark was wearing a selection of woolly chullos, turning up one or both of the ear-flaps of the hat.

N-Dubz are an English hip-hop trio from Camden Town, London, England, consisting of cousins Dappy and Tulisa, and Fazer. After winning a MOBO Award for Best Newcomer in 2007, N-Dubz briefly signed with Polydor Records before joining All Around the World. Released the following year, the trio's debut album Uncle B was certified double platinum and gave rise to four UK top-40 singles.