- All lead vocals by مارفين غاي
- Produced by Marvin Gaye
- Members of the Detroit Symphony Orchestra Conducted and Arranged by David Van De Pitte
- Background vocals:
- وتر، آلة نفخ خشبية and آلة نفخ نحاسية
- Gordon Staples, Zinovi Bistritzky, Beatriz Budinzky, Richard Margitza, Virginia Halfmann, Felix Resnick, Alvin Score, Lillian Downs, James Waring – violins
- Edouard Kesner, Meyer Shapiro, David Ireland, Nathan Gordon – violas
- Italo Babini, Thaddeus Markiewicz, Edward Korkigan – cellos
- Max Janowsky – double bass
- Carole Crosby – harp
- Dayna Hardwick, William Perich – flutes
- Larry Nozero, Angelo Carlisi, جورج بنسون، تيت هوستون – saxophones
- John Trudell, Maurice Davis – trumpets
- Nilesh Pawar – أوبوا
- Carl Raetz – trombone
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- The Funk Brothers – Instrumentation, spoken interlude ("What's Going On") and Solo Horns
- Eli Fountain – alto saxophone "What's Going On"
- وايلد بيل مور – tenor saxophone "Mercy Mercy Me"
- Marvin Gaye – piano, Mellotron ("Mercy Mercy Me"), box drum ("What's Going On")
- جوني غريفيث – سيليستا، additional keyboards
- إيرل فان ديك – additional keyboards
- Jack Brokensha – فيبرافون، percussion
- Joe Messina، روبرت وايت – electric guitars
- James Jamerson – bass guitar "What's Going On", "What's Happening Brother", "Flyin' High", "Save the Children", "God Is Love", and the الجانب أ والجانب ب [لغات أخرى] "Sad Tomorrows"
- بوب بابيت – bass guitar "Mercy Mercy Me", "Right On", "Wholy Holy" and "Inner City Blues"
- Chet Forest – drums
- جاك أشفورد – tambourine, percussion
- إدي براون – طبلة بونجو، كونغا
- Earl DeRouen – bongos and congas "Right On"
- Bobbye Hall – bongos "Inner City Blues"[1]
- Katherine Marking – تصميم الجرافيك
- Alana Coghlan – graphic design
- John Matousek – ماسترينغ صوتي
- Vic Anesini – Digital Remastering
- James Hendin – Photography
- Curtis McNair – Art Direction
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