"Ghostbusters" (the song) was written and recorded by Ray Parker Jr. as the theme to the 1984 movie of the same name starring Bill Murray, Dan Aykroyd, Harold Ramis, and Ernie Hudson.
You are lucky to have me around to play actual good music. If it wasn't for me and maybe one or two others you'd be stuck with niothing but chit disco, chit progressive rock, and chit 80's synth-pop