The following celebrities were featured in the song and music video (time indicates first appearance on the official dipdive.com version):

will.i.am - 0:01
Scarlett Johansson - 0:05
Kareem Abdul-Jabbar - 0:21
Common - 0:23
John Legend - 0:32
Bryan Greenberg (guitar) - 0:37
Kate Walsh - 0:44
Tatyana Ali - 0:44
Harold Perrineau, Jr. - 0:49
Aisha Tyler - 1:01
Samuel Page - 1:03
Enrique Murciano - 1:07 "Si, podemos" - 1:17
Maya Rubin - 1:08 "Kein Annu Yicholim" (Hebrew)
Esthero - 1:10
Natasha Bedingfield - 1:11
Eric Balfour - 1:23
Nicole Scherzinger - 1:30
Taryn Manning - 1:40
Amber Valletta - 1:52
Auden McCaw (in Valetta's arms) - 1:52
Kelly Hu - 1:52
Adam Rodríguez - 1:56 "Sí se puede"
Eric Christian Olsen - 2:02
Sarah Wright - 2:02
Shoshannah Stern (American Sign Language) - 2:05
Ed Kowalczyk (guitar) - 2:19
Fonzworth Bentley (violin) - 2:38
Amaury Nolasco - 3:24
Hill Harper - 3:27
Nick Cannon - 3:36
Herbie Hancock (piano) - 3:41
Johnathon Schaech - 3:45
Austin Nichols - 3:50
Tracee Ellis Ross - 4:00
Fred Goldring (guitar) - 4:03

Anson Mount
Alfonso Ribeiro
Cliff Collins
Vera Farmiga