Ray Erskine Parker Jr. (born May 1, 1954) is an American guitarist, singer-songwriter,  record producer, and actor, best known for writing and performing the theme song to the movie "Ghostbusters", for his solo music, and for performing with his band, Raydio, and with Barry White. Using only the above description and what you know about the world, "The Ghostbusters movie's theme song is well known and Ray Erskine Parker Jr. performed it with his band, Raydio." is definitely correct, incorrect, or inconclusive? 