Richard Quitevis known by his stage name DJ Qbert or Qbert, is an American turntablist and composer who has heavily influenced the History of DJing. He was awarded America's Best DJ in 2010, was DMC USA Champion 1991 (solo) and achieved titles as DMC World Champion in 1992 and 1993.

Turntablism is the art of manipulating sounds and creating new music, sound effects, mixes and other creative sounds and beats, typically by using two or more turntables and a cross fader-equipped DJ mixer. The mixer is plugged into a PA system and/or broadcasting equipment so that a wider audience can hear the turntablist's music. Turntablists typically manipulate records on a turntable by moving the record with their hand to cue the stylus to exact points on a record, and by touching or moving the platter or record to stop, slow down, speed up or, spin the record backwards, or moving the turntable platter back and forth, all while using a DJ mixer's crossfader control and the mixer's gain and equalization controls to adjust the sound and level of each turntable. Turntablists typically use two or more turntables and headphones to cue up desired start points on different records.