Harry Lillis "Bing" Crosby (May 3, 1903 – October 14, 1977) was an American singer and actor. Crosby's trademark bass-baritone voice made him one of the best-selling recording artists of the 20th century.男高音(Tenor)男中音(Baritone)男低音(bass)女高音(Soprano)女中音(Mezzo-soprano,又作次女高音)女低音(Contralto,又作Alto)