drum programming (6) Roy Hargrove – trumpet, vocals (8) Queen Latifah, Angie Stone, Bahamadia - vocals (9) Common - vocals (11) Raphael Saadiq - bass guitar (11) Production Producers: Freakquency, Dead Prez, Raphael Saadiq Executive producers: Erykah Badu, Kedar Massenburg Co-executive producers: James Poyser, Rashad Smith, Tom Soares, R.C. Williams Recording Engineer: Tom Soares Assistant engineers: Shinobu Mitsuoka (4), Tim Olmstead (5) Mixing: Tom Soares, Leslie Brathwaite (7), Brian Stanley (8) Mastering: Chris Athens (exc. 7), Robert Wechsler (7) Creative director: Sandy Brummels Vocal Coaching: Erykah Badu, Lis Lewis, David Angerstein Art direction: Erykah Badu, Kenny J. Gravillis Drawing: Erykah Badu Photography: Marc Baptiste Make-up: Melanie Harris Stylist: Carlton Jones Charts Weekly charts Year-end charts References External links Worldwide Underground at Discogs Worldwide Underground at Metacritic Worldwide Underground'' at αCharts 2003 albums Albums produced by Raphael Saadiq Albums produced by James Poyser Albums produced by Rashad Smith Erykah Badu albums Motown albums