Enuff Z'nuff's 11th studio album, simply titled ?, is an odds and ends collection of previously unreleased studio material recorded throughout the band's career. Although a few new tracks were recorded specifically for the album, the remainder of the songs were originally recorded during the sessions of their albums Animals With Human Intelligence and Paraphernalia. The ? album was released first in Japan, where it peaked at #177. A U.S. release followed soon after in October on Perris Records, as well as a European release on Frontiers Records in early 2005.