Producer: Kanye West - Artist: Rihanna - Artist: Kanye West - Producer: Paul McCartney - Co-Producer: Mike Dean - Artist: Paul McCartney - Recording Producer: Kuk Harrell - Additional Producer: Dave Longstreth - Additional Producer: Noah Goldstein - Recording Engineer: Marcos Tovar - Recording Engineer: Noah Goldstein - Recording Engineer: Mike Dean - Asst. Recording Engineer: Brendan Morawski - Asst. Recording Engineer: Jeremy Hartney - Asst. Recording Engineer: Brandon Wood - Asst. Recording Engineer: Jordon Heskett - Mixer: Manny Marroquin - Assistant Mixer: Chris Galland - Assistant Mixer: Jeff Jackson - Assistant Mixer: Ike Schultz - Acoustic Guitar: Paul McCartney - Bass Guitar: Mike Dean - Organ: Dave Longstreth - A&R: Jay Brown - A&R: Tyran Smith - A&R: Omar Grant