Multi - difficult to know exactly how many performed on this - Band Aid "Do They Know It's Christmas" (with Bananarama, Bob Geldof, Culture Club, David Bowie, Duran Duran, Eurythmics, Frankie Goes to Hollywood, Heaven 17, Human League, Kool and the Gang, Midge Urge, Paul Young, Phil Collins, Spandau Ballet, Status Quo, Sting, The Style Council U2, Wham!). Paul also did a narration for the 'b' side to this disc.
The original Band Aid ensemble consisted of (in sleeve order):
Roger Daltrey (The Who)
Phil Collins (Genesis, BrandX, solo)
Bob Geldof (The Boomtown Rats, subsequently USA for Africa)
Steve Norman (Spandau Ballet)
Chris Cross (Ultravox)
John Taylor (Duran Duran)
Paul Stanley (Kiss)
Paul Young
Tony Hadley (Spandau Ballet)
Glenn Gregory (Heaven 17)
Simon Le Bon (Duran Duran)
Simon Crowe (The Boomtown Rats)
Marilyn
Keren Woodward (Bananarama)
Martin Kemp (Spandau Ballet)
Jody Watley (Shalamar)
Bono (U2)
Paul Weller (The Style Council, and previously The Jam)
James "J.T." Taylor (Kool & The Gang)
George Michael (Wham!)
Midge Ure (Ultravox)
Martyn Ware (Heaven 17, and previously Human League)
John Keeble (Spandau Ballet)
Gary Kemp (Spandau Ballet)
Sting (The Police)
Pete Briquette (The Boomtown Rats)
Francis Rossi (Status Quo)
Robert 'Kool' Bell (Kool & the Gang)
Andy Taylor (Duran Duran)
Jon Moss (Culture Club)
Rick Parfitt (Status Quo)
Nick Rhodes (Duran Duran)
Johnny Fingers (The Boomtown Rats)
David Bowie (who contributed via a recording that was mailed to Geldof and then dubbed onto the single)
Boy George (Culture Club)
Holly Johnson (Frankie Goes to Hollywood) Recorded over the phone
Paul McCartney (The Beatles, and then Wings) (who contributed via a recording that was mailed to Geldof and then dubbed onto the single)
Big Country (only appeared on the b-side of messages, they did not participate in the recording of the a-side)
The sleeve artist, Peter Blake, was also credited on the sleeve.