This song was on the soundtrack to the first Scooby-Doo movie, which I loved by the way. I did not like the second, even though they incorporated the monsters from the TV show. It was just kind of a mess. Also on the CD is an exclusive Kylie Minogue song, but it's obviously just a left-over track that didn't make it onto her Fever album. It doesn't have anything to do with the movie or ghosts or anything. I don't even remember if it was actually IN the movie! This one makes a fleeting appearance, I THINK during a chase scene. It's called "Bump In The Night" by Allstars.
So put that on your Halloween playlist!