DJ I, Robot is the world's first fully robotic hip-hop DJ, able to cut, scratch, and mix records with three high-speed servo-controlled motors; it functions both as a tool for composing original collaged music and as a novel performance interface, the latter being the current focus of our research. The cultural phenomenon of DJing began in the mid-1970s as a ghetto misappropriation of a delicate consumer technology; this project attempts to intervene in this history by creating a novel technology for the field, and has been met by professional DJs with a mixture of respect, envy, and loathing. DJ I, Robot premiered in 2001 at the Berlin Film Festival, and has performed from Boston to Spliit, Croatia, while appearing in publications from Artbyte to Wired News.