Joseph Hahn (Dallas, March 15, 1977) is an American musician, DJ, director and visual artist best known as the DJ of the American rock band Linkin Park, doing the scratching, turntables, sampling, and programming for all seven of Linkin Park's albums. Hahn, along with bandmate Mike Shinoda, are responsible for most of Linkin Park's album artwork. Hahn also directed many of the band's music videos.