Ever heard of toasting? Not bread, or drugs–but the characteristic style in hip hop and reggae. As described on wikipedia:
Toasting is a style of chanting or talking over the record that was first used by 1960s Jamaican deejays such as U-Roy and Dennis Alcapone. This style greatly influenced Jamaican DJ Kool Herc, who used the style in New York City in the late 1970s to pioneer a new genre that became known as hip hop or rap. Mixing techniques employed in dub music have also influenced hip hop.
In the discussion of “where did hip hop originate,” some scholars reference dancehall and toasting as a sign that hip hop originates from reggae (dancehall orginates out of reggae). Other scholars use this fact to argue the opposite point: contemporary dancehall spawned from hip hop.
Either way, as SFCritic was searching blogs I stumbled upon a good example of toasting, as well as a catchy and unique remix of Britney Spears. Take a look: