Musicians on the song's session were uncredited, in line with Motown policy. Motown did not list session musician credits on their releases until 1971. The musicians who performed on "ABC" are believed to be as follows: •
Michael Jackson – Lead vocals (1–10, 12) background vocals (11) •
Jermaine Jackson – Lead vocals (1, 3–5, 10—11), background vocals (2, 6–9, 12) •
Marlon Jackson – Lead vocals (3), background vocals •
Tito Jackson – Lead vocals (3, 10), background vocals •
Jackie Jackson – Lead vocals (3, 10), background vocals •
Wilton Felder, Ron Brown and Bob West - Bass • Gene Pello,
Ed Greene and
James Gadson - Drums •
David T. Walker,
Louis Shelton, Don Peake and
Willie Hutch - Guitar •
Don Randi and
Joe Sample - Piano •
Freddie Perren - Keyboards • Jerry Steinholtz,
Bobbye Hall and
Sandra Crouch - Percussion ==Charts==