Thomas Walter Hampson (born June 28, 1955) is an American lyric baritone, a classical singer who has appeared world-wide in major opera houses and concert halls and made over 170 musical recordings. Hampson's operatic repertoire spans a range of more than 80 roles, including the title roles in Mozart's Don Giovanni, Rossini's Guillaume Tell and Il barbiere di Siviglia, Thomas' Hamlet, and Tchaikovsky's Eugene Onegin.
https://en.wikipedia.org/wiki/Thomas_Hampson