About Joe Hahn
Joseph Hahn is an American musician, DJ, director, and visual artist best known as the DJ and creative director of the rock band Linkin Park, doing the scratching, turntables, sampling, and programming for all eight of Linkin Park's albums. Hahn and bandmate Mike Shinoda are responsible for most of Linkin Park's album artwork. Hahn also directed many of the band's music videos. Hahn became the first Korean American to receive a Grammy when the band won the 2002 award for Best Hard Rock Performance. Hahn was called Chairman Hahn on the back cover of Linkin Park's first remix album Reanimation next to the remixes of the songs "With You" and "Cure for the Itch", titled "Wth>You" and "Kyur4 TH Ich", respectively.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.