Formed in Costa Mesa, CA, Of Mice & Men (often abbreviated OM&M) is a metalcore band consisting of lead vocalist and bassist Aaron Pauley, lead guitarist Phil Manansala, rhythm guitarist Alan Ashby, and drummer Valentino Arteaga. The group was founded in 2009 after Carlile’s departure from Attack Attack!. Since 2009, the band has released four studio albums. The name of the band is derived from John Steinbeck’s novel of the same title.