Saosin is an American rock band formed in 2003 in Orange County, California. Known for their blend of post-hardcore and alternative rock, the band gained popularity with their self-titled EP and debut album, Saosin, released in 2006. Their music features intricate guitar work, emotional lyrics, and dynamic vocals. The original lineup included lead vocalist Anthony Green, who later left to pursue other projects. Saosin has undergone several lineup changes over the years but continues to produce music and tour. Their sound has influenced many bands in the post-hardcore genre, making them a significant presence in the music scene.