Joseph Calleja performed a Tiny Desk Concert November 26. Abbey Oldham/Abbey Oldham/NPR hide caption

itoggle caption Abbey Oldham/Abbey Oldham/NPR

Joseph Calleja's voice reminds many of the golden-age tenors of the past.

Johannes Ifkovitz/Decca hide caption

itoggle caption Johannes Ifkovitz/Decca

Tenor Placido Domingo switches to the baritone register to sing the title role in Verdi’s Simon Boccanegra last month at the BBC Proms Concerts. Chris Christodoulou/BBC hide caption

itoggle caption Chris Christodoulou/BBC