Red Bull's Big Tune competition spent the past few months crossing the US in search of the nation's best unknown hip-hop producers, leading up to tonight's final showdown in New York. Up-and-coming beatsmiths from Seattle to Houston will face off in pursuit of a recording session with either Nas, Common, Lupe Fiasco, or the Game — and some serious bragging rights — as decided by the crowd tonight. All-star producer the Alchemist stops by to spin some of his spare and soulful cuts, Digable Planets toss off effortless rhymes from the golden age of jazz-rap, and Ghostface represents Shaolin with supreme lyrical finesse.