Run DMC vs. The White Stripes (Seven Nation Army) is a classic bootleg, but do it with the acapella. Strip the voice down, drop it over the distorted guitar riff of "Seven Nation Army," and add a sidechain compressor ducking to the kick drum. You will have the most packed dancefloor in the club.

When you listen to the acapella, you aren't listening to a track. You are listening to a manifesto. You hear the blueprint for Eminem’s aggression, the Beastie Boys’ party energy, and even the punk rock snarl of early Rage Against The Machine.

"Peter Piper" was released in 1985 as part of Run DMC's self-titled debut album, which was a game-changer in the hip-hop world. The song itself is a reference to the classic nursery rhyme "Peter Piper Picked a Peck of Pickled Peppers," and features the group rapping over a sparse, drum-machine-driven beat. However, it's the acapella intro, which features D.M.C. rapping over a capella version of the rhyme, that has become one of the most recognizable and celebrated moments in hip-hop history.