Rapper and stylish dude Mos Def AKA “Flaco Bey” made a stop into Union in LA for an impromptu photoshoot showcasing Union’s new collaborative shoe with Mark McNairy. As you can see, Mos is a natural and does the shoe great justice. Such justice, owner Chris Gibbs has informally renamed the shoe “Blue Bey” in Mos' honor. [Union]