To coincide with the film Re:Generation, Mark Ronson takes us to the heart of New Orleans and conducts a musical piece. The film will be shown in selected cities tomorrow and the 23rd. After the jump, check out Ronson and Ms. Badu giving a live performance of the track during last night’s Late Show With David Letterman. Previously: DJ Premier Ft. Nas x The Berklee Symphony Orchestra “Regeneration”