Chioos (pronounced /tʃiːˈoʊdoʊs/ chee-O-dose) is a six-member Post-Hardcore band from Davison, Michigan. Originally known as "The Chiodos Bros.," the band's name was a nod to filmmakers Stephen, Charles, and Edward Chiodo, responsible for the movie Killer Klowns from Outer Space. Their second full length album, Bone Palace Ballet, was released in North America on September 4, 2007 and debuted at number 5 on the Billboard 200 and number 1 on Top Independent Albums.. The international release date for the album was September 24, 2007.