Acclaimed director Sacha Jenkins shines a spotlight on the life and rhymes of the 'clown prince of hip-hop', Biz Markie, best known for his Top 40 hit, "Just a Friend." A who's who of legends like rappers Rakim, Big Daddy Kane, Doug E Fresh and actor/comedian Tracy Morgan share how Markie's playful approach to the genre made him a hip-hop icon and left an indelible mark in the world of music.

A countdown of 100 of the most shocking moments in music, hosted by Chris Jericho.