 "Insomniac" has an edgier, darker, more urban and contemporary sound compared to its predecessor, as it contains Iglesias's first collaboration with a rapper, Lil Wayne on the song Push as well as a cover of indie rock band Ringside's "Tired of Being Sorry".It was released worldwide on 11 June 2007 and in the USA on 12 June 2007.The album is his first for four years since "7".