Is there a person that has ever lived that was more of a Halloween icon than Michael Jackson? Lets look at the facts:
He dressed in costume almost every day of his life.
He didn't even need a mask to have a scary face.
His song Thriller is a Halloween song that we listen to all year round.
A lot of his other songs also make great Halloween songs: Billy Jean, Dirty Diana, Smooth Criminal, Beat It, and Bad, just to name a few.
Just know that wherever you are tonight, somewhere Michael Jackson is looking down on us and wishing you a Happy Halloween!