American metal vocalist best known as the frontman of the Christian metalcore act Underoath. After replacing Dallas Taylor as the band's vocalist in 2003, he sang on Grammy-nominated singles like "Writing on the Walls".
He grew up in Greensboro, North Carolina and struggled with drug and alcohol addiction.
He founded a new band, Sleepwave, in 2013. The band's debut album was released in September 2014.
He played with his brother, drummer Phil Chamberlain, as a member of the band This Runs Through.
He and drummer Aaron Gillespie are both most famous as members of Underoath.