Chelsea Grin is an American death core band from Salt Lake City, Utah. Formed in 2007, the group is signed to Rise Records and have released two EPs and three full-length albums. Chelsea Grin was originally formed by Alex Koehler and former band mates under the name Ahaziah. The band's first members were Alex Koehler, guitarist Chris Kilbourn, bassist Austin Marticorena and lead guitarist Michael Stafford. Marticorena introduced Andrew Carlston to Chelsea Grin and assisted in rewriting their songs as well as the creation of new material. This writing process lead to the tracks on their first release, a self-titled EP that was streamed and released online through iTunes, then released in Compact Disc format worldwide on July 27, 2008.