Lukasz "Dr. Luke" Gottwald (also known as Doctor Luke, Luke Gottwald, Lukasz Gottwald, birth name Lukasz Sebastian Gottwald) is a musician, songwriter and producer who has written and produced for artists such as Kelly Clarkson, Jibbs, Lady Sovereign, Kelis, Avril Lavigne, Marion Raven, Missy Elliott, P!nk, Lil' Mama, Mos Def, The Backstreet Boys, Daughtry, The Veronicas, Britney Spears, Christina Aguilera and The Sugababes. Dr. Luke was also the guitar player in the Saturday Night Live band for ten years