| Person | Type | Job | Role(s) |
|---|---|---|---|
 David Leaf | Crew | Writing | Writer |
David Wild | Crew | Writing | Writer |
 Ken Ehrlich | Crew | Writing | Writer |
Leon Knoles | Crew | Directing | Director |
 Barry Gibb | Cast | Actor | Self - Performer |
 Céline Dion | Cast | Actress | Self - Performer |
 John Travolta | Cast | Actor | Self - Host |
 Olivia Newton-John | Cast | Actress | Self |
 Stevie Wonder | Cast | Actor | Self - Performer |
 Wilmer Valderrama | Cast | Actor | Self - Presenter |
 Demi Lovato | Cast | Self - Performer | |
 John Legend | Cast | Actor | Self - Performer |
 Katharine McPhee | Cast | Actress | Self - Performer |
 Keith Urban | Cast | Actor | Self - Performer |
 Tori Kelly | Cast | Actress | Self - Performer |
 Ed Sheeran | Cast | Actor | Self - Performer |
 Nick Jonas | Cast | Actor | Self - Performer |
 Avi Kaplan | Cast | Actor | Self |
 Kevin Olusola | Cast | Actor | Self |
 Mitch Grassi | Cast | Actor | Self |
 Scott Hoying | Cast | Actor | Self |
 Cynthia Erivo | Cast | Actress | Self - Presenter |
 Kirstin Maldonado | Cast | Actress | Self |
 Thomas Rhett | Cast | Actor | Self - Perfomer |
 Andra Day | Cast | Actress | Self - Performer |
 Kelsea Ballerini | Cast | Actress | Self - Perfomer |
 Matthew Sallee | Cast | Actor | Self |
Tavares | Cast | Self - Performer | |
Neil Portnow | Cast | Self - The Recording Academy | |
DNCE | Cast | Self - Performer | |
| Person | Type | Job | Role(s) |
