 The album mixes a variety of musical styles , from classical piano and opera , with full orchestral backing , to polka , vaudeville , jazz , pop and rock , and features both song and spoken @-@ word elements . Singer Russell Mael 's falsetto vocals remain a prominent feature , while Ron Mael makes his vocal debut in the roles of the limo driver and Hollywood tour guide . Besides Jonas Malmsjö providing Bergman 's voice , Elin <unk> , one of Bergman 's favourite actresses in the latter stages of his career , appears in the role of Greta Garbo . Sparks drummer Tammy Glover appears as The Hollywood Welcoming Committee , while opera singer Rebecca <unk> plays a Hollywood actress . 
