Yeah! is Def Leppards ninth studio album and their first full album of cover versions. It was released in May 2006, with the UK date on May 22 and the US date on May 23. The double LP collects energetic reimaginings of 1970s classics by artists such as David Bowie, T. Rex, The Kinks, The Sweet and The Move, infusing these songs with Def Leppards hard rock edge. Highlights include 20th Century Boy, Rock On, Waterloo Sunset, Hell Raiser, Dont Believe a Word and Stay With Me.