Dan Hoerner is a musician best known as the guitarist for the American rock band Sunny Day Real Estate. The band, formed in 1992, is often credited with pioneering the emo genre, blending melodic elements with emotional lyrics. Hoerner's guitar work contributed significantly to the band's distinctive sound. In addition to his work with Sunny Day Real Estate, Hoerner has been involved in various musical projects and collaborations. He has also played with other bands, including The Fire Theft, which he co-founded after Sunny Day Real Estate's initial breakup. His contributions to music continue to influence many artists in the genre.