Robert Cooper Phillips (April 27, 1975 – October 9, 2015), better known by his stage name Koopsta Knicca, was an American hip hop artist from Memphis, Tennessee, USA. He was best known as one of the original members of the Memphis rap group Three 6 Mafia, and also for his solo career which began with the release of his first album Da Devil's Playground: Underground Solo in 1999. On October 6, 2015, Phillips suffered a stroke and a brain aneurysm leaving him unconscious and on life support.