Dub poetry originated in Jamaica during the 1970s, and evolved from dub music. Its popularity grew and spread to Canada and England. In dub poetry, the poet performs, accompanied by musical instruments, such as drums, guitars, etc. For more information on dub poetry, see Geoffrey Philps' primer on the origins of dub poetry. See also Wikipedia's take on dub poetry.
In addition to Cherry Natural, other notable dub poets are Linton Kwesi Johnson, Oku Onuora, Benjamin Zephaniah, Lillian Allen, Mutabaruka and Afua Cooper.
Here in this video, Cherry Natural performs her poem, Be You. Enjoy.