Hip hop began in the 1970s in New York and consists of three main elements - rap, breakdancing, and graffiti. Rap music became commercially successful in the 1980s. The early 1990s saw the rise of gangsta rap and a split between East Coast and West Coast styles, fueling rivalries between artists like Tupac Shakur and Notorious B.I.G. who were both shot and killed in 1996-1997. Despite these tragic events, hip hop remains popular today with major artists like 50 Cent, Eminem, and Kanye West continuing its legacy worldwide.