Rapping (or emceeing, MCing, spitting bars, or rhyming) is "spoken or chanted rhyming lyrics". The components of rapping include "content", "flow" (rhythm and rhyme), and "delivery". Rapping is distinct from spoken-word poetry in that it is performed in time to a beat (external meter).Rapping is often associated with and a primary ingredient of hip-hop music, but the origins of the phenomenon can be said to predate hip-hop culture by centuries. It can also be found in alternative rock such as that of Cake, Gorillaz and the Red Hot Chili Peppers. Rapping is also used in Kwaito music, a genre that originated in Johannesburg, South Africa, and is composed of hip-hop elements. Another form of rap that predates hip hop was Muhammad Ali's rhythmic poetry used to taunt his opponents in the 1960s