Hip-hop is a genre of music that has been around since the 1970s and has evolved over time. TRAP, gangsta, gangstarap, and gangsterrap are all subgenres of hip-hop that have emerged in recent years. TRAP is characterized by its dark, aggressive sound and often references drug use and violence. Gangsta rap is a subgenre of hip-hop that focuses on the struggles of inner-city life and often includes explicit lyrics. Gangstarap is a combination of gangsta rap and TRAP, while gangsterrap is a combination of gangsta rap and hardcore rap. All of these subgenres are popular within the hip-hop community and have helped to shape the genre as a whole.