Trap is a subgenre of hip-hop music that originated in the Southern United States during the late 1990s and early 2000s. It is characterized by its aggressive lyrical content and sound, with themes often revolving around street life, hardship, and experiences in the 'trap,' a term used to describe a place where illegal drugs are sold. Musically, trap is known for its use of crisp, rhythmic hi-hats, heavy sub-bass, layered synthesizers, and melodic hooks. The genre gained mainstream popularity in the 2010s, influencing a wide range of artists across different music styles. It continues to evolve and remains a dominant style in contemporary popular music.