There are 5 different groups with this name: 1.) Halloween, an American heavy metal band that formed in 1984. www.halloweentheband.us 2.) Halloween, a French symphonic prog band. They existed between 1988-2002 and recorded 5 albums. http://www.progarchives.com/artist.asp?id=143 3.) Halloween, an obscure 70's Disco-Band. They only recorded one album, "Come See What's It All About".