Musicians Cindy Campbell and DJ Kool Herc take center stage in a 2013 celebration of the 40th anniversary of hip-hop. The brother and sister duo threw a "Back-to School Jam" in August, 1973 and launched a lasting music genre.

How the Block Party Became an Urban Phenomenon

Watch the National Museum of African American History and Culture's 2022 star-studded Hip-Hop Block Party

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