Yeah! is the ninth studio album by British rock band Def Leppard. It is the first cover album by the band. It was originally intended to be released on 20 September 2005, but it was announced on 31 March 2006 that the album would be released on 23 May 2006. The album charted at No. 16 on the Billboard 200 and No. 52 on the UK Albums Chart.