The album includes jazz standards " What a Diff'rence a Day Made ", " Singin'in the Rain ", and Cole Porter's " I Get a Kick out of You ", modern takes on " My Fair Lady "'s " I Could Have Danced All Night ", Jeff Buckley s " Lover, You Should Have Come Over ", and Jimi Hendrix's " The Wind Cries Mary ", as well as new tracks written by Cullum and his brother Ben, including the first single from the album " All At Sea " and the title track " Twentysomething ".
