Dubstep is a genre of electronic dance music that originated in South London, England. It emerged in the late 1990s as a development within a lineage of related styles such as 2-step garage, dub, techno, drum and bass, broken beat, jungle, and reggae. In the UK the origins of the genre can be traced back to the growth of the Jamaican sound system party scene in the early 1980s. The music generally features sparse, syncopated drum and percussion patterns with bass lines that contain prominent sub bass frequencies.
The earliest dubstep releases date back to 1998, and were usually featured as B-sides of 2-step garage single releases. These tracks were darker, more experimental remixes with less emphasis on vocals, and attempted to incorporate elements of breakbeat and drum and bass into 2-step. In 2001, this and other strains of dark garage music began to be showcased and promoted at London's night club Plastic People, at the "Forward" night (sometimes stylised as FWD>>), which went on to be considerably influential to the development of dubstep. The term "dubstep" in reference to a genre of music began to be used by around 2002 by labels such as Big Apple, Ammunition, and Tempa, by which time stylistic trends used in creating these remixes started to become more noticeable and distinct from 2-step and grime.
A very early supporter of the sound was BBC Radio 1 DJ John Peel, who started playing it from 2003 onwards. In 2004, the last year of his show, his listeners voted Distance, Digital Mystikz, and Plastician in their top 50 for the year. Dubstep started to spread beyond small local scenes in late 2005 and early 2006; many websites devoted to the genre appeared on the Internet and aided the growth of the scene, such as dubstepforum, the download site Barefiles and blogs such as gutterbreakz. Simultaneously, the genre was receiving extensive coverage in music magazines such as The Wire and online publications such as Pitchfork Media, with a regular feature entitled The Month In: Grime/Dubstep. Interest in dubstep grew significantly after BBC Radio 1 DJ Mary Anne Hobbs started championing the genre, beginning with a show devoted to it (entitled "Dubstep Warz") in January 2006.
Towards the end of the 2000s and into the early 2010s, the genre started to become more commercially successful in the UK, with more singles and remixes entering the music charts. Music journalists and critics also noticed a dubstep influence in several pop artists' work. Around this time, producers also began to fuse elements of the original dubstep sound with other influences, creating fusion genres including future garage, the slower and more experimental post-dubstep, and the harsher electro house and heavy metal influenced brostep, the latter of which greatly contributed to dubstep's rising mainstream popularity in the United States.