harmonica (track 10) Chris Mosdell – composer (track 9) James Murray – instrumental recording engineer (tracks 2, 4, 6) Kadir Nelson – cover art Jon Nettlesbey – digital editing (track 9), drum machine (9), recording engineer (2, 9), additional keyboards (9), audio mixing (9), sequencing (9) Wessel Oltheten – orchestra recording engineer (track 1) Matt Paul – music recording assistant (track 1) Greg Phillinganes – additional keyboards (track 9) Mike Phillips – saxophone (track 9) Justin Pintar – music recording assistant (track 1) Michael Durham Prince – archivist, instrumental recording engineer (track 2), human whistle (2), vocal recording engineer (2, 4, 6) The Regiment – horn section (track 2) Teddy Riley – producer (tracks 2, 5, 7), spoken bridge lyrics (2), audio mixing (2, 5, 7), music programming (2, 5, 7) Tim Roberts – audio mixing assistant (tracks 4, 6) Christina Rodriguez – art direction, design Craig Ross – 12 string electric guitar (track 8) Ryuichi Sakamoto – composer (track 9) Mark Santangelo – mastering assistant Miguel Scott – music recording assistant (track 1) Allen Sides – recording engineer (track 9), audio mixing (10) Leon F. Sylvers III – background vocal arrangement (track 9) Evvy Tavasci – archivist Aliaune "Akon" Thiam – lead vocals, producer, composer, all other instruments, music programming (track 1) Giorgio Tuinfort – producer, composer, all other instruments, music programming (track 1) Franck Van Der Heijden – string arrangements (track 1) Erick Donell Walls – guitar (tracks 2, 4, 6) Ryan Wiese – music recording assistant (track 1) Shanice Wilson – additional background vocals (track 9) Mack Woodward – music recording assistant (track 1) Big Jim Wright – drum machine, keyboards (track 9) Cascio tracks only contributions Rudy Bird – musician (tracks 3, 5) Stuart Brawley – assistant recording engineer (track 3, rap: 5), recording engineer (7), musician (3, 5, 7), talking voice talent (7) Eddie "Angelikson" Cascio – producer, composer, musician (tracks 3, 5, 7) Myron Chandler – talking voiceover recording engineer (track 7) Joe Corcoran – assistant recording engineer (track 3, rap: 5), drum machine (3, 5, 7), recording engineer (7), musician (3, 5, 7) Brandon Datoli – assistant string section recording engineer (track 7) Steven Dennis – assistant recording engineer (track 3) Reggie Dozer – string section recording engineer (track 7) Nicole Garcia – musician (track 3) Jesus Garnica – audio mixing assistant (track 3) Dave Hampton – talking voiceover recording engineer (track 7)