Trap music is a music genre that originated in the early 1990s in the Southern United States. It is typified by its aggressive lyrical content and sound, which incorporates 808 sub-bass kick drums, double-time, triple-time and other faster time division hi-hats, layered synthesizers, and "cinematic" strings. In 2012, a new movement of electronic music producers and DJs emerged who began incorporating elements of trap music into their works. This helped expand its popularity among electronic music fans. A number of stylistic offshoots of trap developed, which in the latter half of 2012 gained a rise in viral popularity and made a noticeable impact on dance music.