Assembling the members of Wu-Tang Clan in the same room at the same time is no easy feat, as Jimmy Fallon well knows. But last night the Killer Bees swarmed Late Night with Jimmy Fallon for a high-octane performance of "Six Directions of Boxing," the group's contribution to the soundtrack album for RZA's directorial debut, The Man With the Iron Fists. Bonus: The Roots help bring the ruckus.