Sébastien Izambard is a French singer, composer and record producer. His vocal range is classified as popular melody or vox populi to a loud, so it has a tenor tessitura phonic.

Il Divo are a multi-national classical crossover vocal group. Formed in the United Kingdom in 2003, Il Divo is a male quartet consisting of Swiss tenor Urs Bühler, American tenor David Miller, French baritone Sébastien Izambard, and American baritone Steven LaBrie. The group previously included Spanish baritone Carlos Marín until his death in 2021 from COVID-19 and replacement by LaBrie in 2023. Il Divo was created and promoted by Simon Cowell for the label Syco Music.