Jason Fraley interviews Grammy winner Marcus Miller, who performs this Saturday at the D.C. Jazz Festival, which runs Wednesday through Sunday at The Wharf in Washington D.C. They discuss his prolific career working with Miles Davis, Luther Vandross, Roberta Flack, Aretha Franklin, Whitney Houston, Mariah Carey and Beyonce, as well as TV shows like “Saturday Night Live” and movies like Spike Lee’s “School Daze” where he co-wrote “Da Butt.” (Theme Music: Scott Buckley's "Clarion")