In the early 1970s, rap began to take shape as a unique form of musical expression within African American and Latino communities in the Bronx, New York City. Grandmaster Flash and the Furious Five, Afrika Bambaataa, LL Cool J, Run-DMC, and many others pioneered this emerging art form. Block parties and early hip-hop clubs, like the Bronx River Community Center, became pivotal gathering places where MCs (Masters of Ceremonies) would showcase their lyrical prowess and engage in friendly verbal competitions, known as "battles."