Dr. Luke, also known as Doctor Luke, Luke Gottwald, Lukasz Gottwald, (real name Lukasz Sebastian Gottwald) is a musician, songwriter and producer who has written and produced for artists such as Kelly Clarkson, Lady Sovereign, Kelis, Avril Lavigne, Missy Elliott, P!nk, Mos Def, Backstreet Boys, Daughtry, Veronicas, The, Paris Hilton and Skye Sweetnam. Dr. Luke is also the guitar player in Saturday Night Live Band, The.