Jason Phillips (born May 27, 1975), better known as Jadakiss, is an American rapper. He is a member of the group The LOX. (a member of the hip hop collective Ruff Ryders) Jadakiss is one of the three owners of the imprint known as D-Block. In early 2007, Jadakiss signed to Roc-a-Fella Records / Def Jam Records.