In light of a music year that has celebrated underground artists and catapulted them into the mainstream spotlight -- think Tyler, the Creator's Best New Artist win at the 2011 MTV Video Music Awards -- The BoomBox highlights an array of artists making big moves in their respective careers. While some mic holders on the list may be familiar, there's always someone who still needs to be put on to their magic. Then there's others whose buzz has the streets talking. Here's 15 up-and-comers making their mark in the the hip-hop and R&B game.

















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