Corey King Beaulieu (born November 22, 1983) is an American musician best known as the guitarist of the heavy metal band Trivium.

[4] Beaulieu began to play guitar at the age of 14, studying under Bill Pierce at Mark's Music in Brewer, Maine.

[5] He said that Guns N' Roses first piqued his interest in rock music, but his main influence to become a musician was after hearing Metallica.

[citation needed] Later, in 2011, Beaulieu performed guest vocals on Maine metal band Rebirth To End's song "The Weakness Randomization.

He also had a signature model V. This V is metallic red with the Trivium circle logo placed between the bridge and neck pickups and is also fitted with a Floyd Rose Locking Tremolo and a Seymour Duncan Dimebucker.