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    2Pac - "Hit 'Em Up"

    No list about badassery would be complete without 2Pac's classic ode to destroying his East Coast rivals. This is one of history's great diss tracks, ranging from the brutally insulting: "First off, fuck your bitch and the clique you claim," and the absolutely degrading: "Biggie, remember when I used to let you sleep on the couch/And beg a bitch to let you sleep in the house?"

    In light of the tragic deaths of both Biggie and Pac, "Hit 'Em Up" comes with some baggage, but the visceral nature of Pac at his most charged up is undeniable.