Annie Lennox, Stephen Hussey (viola), Ivan Hussey (cello), Neal Wilkinson (drumkit), Chris Hill (bassguitar), Laura Welsh (vocalist), Graham Archer (additionalproducer, programmer), Devonté Hynes (piano), Simon Bloor (keyboard, guitar), The Weeknd, Stephan Moccio (piano, recordingarranger), Jason "DaHeala" Quenneville (additionalvocalist), Paul Bushnell (bassguitar), Jonathan Martin Berry (guitar), Abel Tesfaye (vocalist), Jessie Ware, Ellie Goulding (vocalist), Max Martin (drumkit, keyboard, bassguitar, percussion), Ali Payami (drumkit, keyboard, bassguitar, percussion), Mattias Bylund (strings, stringarranger), Mattias Johansson (violin), David Bukovinszky (cello), Beyoncé, Hit-Boy (drumprogrammer), Sia, Sia Furler (vocalist), Alison Bjorkedal (harp), Michael Chaves (guitar), Adam Christgau (percussion), Jason Cooper (drumkit), The Rolling Stones, Mick Jagger (vocalist), Keith Richards (guitar, acousticguitar, vocalist), Ron Wood (guitar, acousticguitar, vocalist), Bill Wyman (bassguitar), Charlie Watts (drumkit), AWOLNATION, Frank Sinatra (vocalist), Buddy Collette (woodwinds), Harry Klee (woodwinds), Joe Koch (woodwinds), Willie Schwartz (woodwinds), Warren Webb (woodwinds), Harry 'Sweets' Edison (trumpet), Conrad Gozzo (trumpet), Vito "Mickey" Mangano (trumpet), Clarence "Shorty" Sherock (trumpet), Dick Noel (trombone), James Priddy (trombone), Juan Tizol (trombone), George Roberts (basstrombone), Alex Beller (violin), Harry Bluestone (violin), Robert Cross (violin), Walter Edelstein (violin), Ben Gill (violin), Paul Nero (violin), Mischa Russell (violin), Marshall Sosson (violin), Gerald Vinci (violin), Maxine Johnson (viola), Barbara Simons (viola), Cy Bernard (cello), Edgar Lustgarten (cello), Eleanor Slatkin (cello), Bill Miller (piano), Joe Comfort (bass), Nick Bonney (guitar), Frank DiVito (drumkit), Kathryn Julye (harp), Vaults, Blythe Pepino (vocalist), Barney Freeman (programmer, synthesizer, drumkit), Ben Vella (programmer, bassguitar), Kate Robinson (violin), Jo Silverston (cello), Skylar Grey, Danny Elfman, Nelson Riddle
