Jamaican music is a genre of music that originated in Jamaica and is heavily influenced by African, Caribbean, and American music. Two of the most popular genres of Jamaican music are Ska and Reggae. Ska is a genre of music that originated in Jamaica in the late 1950s and is characterized by a walking bass line, offbeat rhythms, and a strong emphasis on the offbeat. Reggae is a genre of music that originated in Jamaica in the late 1960s and is characterized by a slower tempo, a four-on-the-floor drum beat, and a heavy emphasis on the bass.