Honoring today's birthday of Christopher "The Notorious B.I.G." Wallace, Yasiin Bey continues his Top 40 Underdog series with latest track. Aptly titled "Bey," the artist formerly known as Mos Def goes fierce over the instrumental of Lil Tunechi's single "John (If I Die Tonight)" and salutes the legacies of Biggie Smalls and Malcolm X. Tune in below.