Boom bap is a hip hop production style that emerged on the East Coast of the United States in the late 1980s and early 1990s, named for the sound of its drums, a deep kick going boom and a sharp snare going bap. Producers built tracks from sampled breakbeats and jazz or soul records, keeping the rhythm raw and loop based. The style became a marker of classic rap authenticity and never disappeared, returning in underground rap, lo fi edits, and short online clips where a recognisable beat is needed instantly.