The band is known for their energetic blend of post-hardcore and emo influences, featuring both melodic and aggressive elements. They gained prominence in the mid-2000s with albums like Dear Diary, My Teen Angst Has a Body Count and Heroine. Over the years, the band has undergone several lineup changes, with guitarist Matt Good remaining a consistent member. Notably, Sonny Moore, who later became known as Skrillex, was the lead vocalist from 2004 to 2007 and rejoined the band in 2017.
