- Adele – composer
- Dianna Agron – cast, vocals
- Adam Anders – arranger, digital editing, producer, vocal arrangement, vocals
- Alex Anders – digital editing, vocal producer, vocals
- Nikki Anders – vocals
- Peer Åström – arranger, engineer, mixing, producer
- Kala Balch – vocals
- Glen Ballard – composer
- Emily Benford – vocals
- Leonard Bernstein – composer
- Dave Bett – creative director
- Joshua Blanchard – assistant engineer
- PJ Bloom – music supervisor
- Steve Bone – assistant engineer
- Anita Marisa Boriboon – art direction, design
- Ed Boyer – engineer, vocal arrangement
- Ben Bram – transcription, vocals
- Brock Baker – vocals
- Ravaughn Brown – vocals
- Geoff Bywater – executive in charge of music
- Alvin Chea – vocals
- Deyder Cintron – assistant engineer, digital editing, engineer
- Chris Colfer – cast, vocals
- Kamari Copeland – vocals
- Darren Criss – cast, vocals
- Tim Davis – vocal contractor, vocals
- Robert Dietz – editing, vocals
- Dante Di Loreto – soundtrack executive producer
- Luke Edgemon – vocals
- Brad Falchuk – soundtrack executive producer
- Tommy Faragher – mixing, producer, vocal arrangement
- Berry Gordy, Jr. – composer
- Lukasz Gottwald – composer
- Heather Guibert – coordination
- Grant Gustin – vocals
- Jon Hall – vocals
- James Harris III – composer
- Robert Hazard – composer
- Fredrik Jansson – assistant engineer
- Billy Joel – composer
- Beyoncé Knowles – composer
- k.d. lang – composer
- Storm Lee – vocals
- David Loucks – vocals
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- Jane Lynch – cast, vocals
- Meaghan Lyons – coordination
- Dominick Maita – mastering
- Chris Martin – composer
- Eddy Martin – vocals
- Jayma Mays – cast, vocals
- Damian McGinty – cast, vocals
- Kevin McHale – cast, vocals
- Curt Mega – vocals
- Lea Michele – cast, vocals
- Gordon Mills – composer
- Alphonzo Mizell – composer
- Cory Monteith – cast, vocals
- Heather Morris – cast, vocals
- Matthew Morrison – cast, vocals
- Ryan Murphy – producer
- Jeanette Olsson – vocals
- Chord Overstreet – cast, vocals
- Adidja Palmer – composer
- John Paterno – engineer, mixing
- Freddie Perren – composer
- Katy Perry – composer
- Martin Persson – programming
- Zac Poor – vocals
- Jemain Purifoy – vocals
- Nicole Ray – production coordination
- Deke Richards – composer
- Amber Riley – cast, vocals
- Naya Rivera – cast, vocals
- David Lee Roth – composer
- Mark Salling – cast, vocals
- Drew Ryan Scott – vocals
- Onitsha Shaw – vocals
- Harry Shum, Jr. – cast, vocals
- Jenny Sinclair – coordination
- Scott Smith – assistant engineer
- Stephen Sondheim – composer, lyricist
- Jenna Ushkowitz – cast, vocals
- Alex Van Halen – composer
- Eddie Van Halen – composer
- Windy Wagner – vocals
- Trevor Wesley – vocals
- Dan Wilson – composer
- Joe Wohlmuth – engineer
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