Unbreakable is the Backstreet Boys' sixth studio album, fifth in the United States. It was released on October 24, 2007 in Japan and October 30 in the United States by Jive Records. This is the first Backstreet Boys album that Kevin Richardson has had no involvement in, who made the decision to pursue other interests.
Unlike previous Backstreet Boys albums, this album features no collaborations with longtime producers and friends Max Martin and Kristian Lundin who had worked on the group's previous albums.