Few records—if any—have had as much impact on music as the Ultimate Breaks and Beats compilation assembled by BreakBeat Lou and BreakBeat Lenny in 1986. By collecting what they called the “foundational” breakbeats – the very records DJs looped for breakdancers at the earliest hip-hop park jams and block parties, they created not only an essential tool for DJs, but also an accidental archive of hip-hop’s DNA. For this 40th anniversary celebration of the original compilation—of which only 25 volumes were released between 1986 and 1991— Breakbeat Lou is joined by members of the Bronx’s legendary Diggin’ in the Crates crew, Lord Finesse and Diamond D. As pioneers of a distinct New York sound, their work helped define the golden era of hip-hop production and lyricism that would soon resonate nationwide. Rounding out a line up filled with SummerStage alumni are Grand Puba and Sadat X of the acclaimed socially conscious rap group Brand Nubian; the iconic duo Nice & Smooth, best known for their single “Hip-Hop Junkies,” their feature on Big Daddy Kane’s “Pimpin Ain’t Easy,” and their unforgettable appearance on Gang Starr’s “DWYCK”; and Peter Gunz, whose collaboration with Lord Tariq, “Deja Vu (Uptown Baby)” became a late-90s anthem—sampling the unmistakable groove of Steely Dan. Completing the celebration is a set by DJ Boogie Blind, known for his affiliations with the legendary X‑ecutioners as well as the Diggin’ in the Crates collective. Together, these artists represent the culture, creativity, and crate-digging spirit that helped transform a DJ tool into one of hip-hop’s most influential musical documents.