Rapping is a musical form of vocal delivery that incorporates rhyme, rhythmic speech, and . Herc, a Jamaican immigrant, started delivering simple raps at his parties, which some claim were inspired by the Jamaican tradition of toasting. For those who are truly curious on the history of rap music, how and when it began, from its origins in Bronx house parties, to its development. Rap began in Jamaica from s. Fact. Thus DJ . I was doing a project on how rap first started and I got a lot of facts and I thank you. Reply.