Ray Erskine Parker Jr. (born May 1, 1954) is an American musician, singer, songwriter, and record producer. As a solo performer, he wrote and performed the theme song for the 1984 film Ghostbusters and also sounds from the animated series The Real Ghostbusters. Previously, Parker achieved a US top-5 hit in 1982 with "The Other Woman". He also performed with his band, Raydio, and with Barry White in the Love Unlimited Orchestra.

https://en.wikipedia.org/wiki/Ray_Parker_Jr.