"Weird Al" Yankovic – Alpocalypse

Backing Vocals – Monique Donnelly
Synthesizer, Sound Designer – Jim West (2)
Written-By – Paul Blair
Written-By – Stefani Germanotta
Written-By – Jeppe Laursen
Written-By – Fernando Garibay

Banjo, Mandolin – Jim West (2)
Written-By – Taylor Swift
Written-By – Liz Rose

Accordion – "Weird Al" Yankovic
Banjo – Jim West (2)
Clarinet – Joel Peskin
Trumpet – Warren Luening
Tuba – Jim Self
Vocals [Group], Handclaps – Jon "Bermuda" Schwartz
Vocals [Group], Handclaps – Jim West (2)
Vocals [Group], Handclaps – Steve Jay
Vocals [Group], Handclaps – "Weird Al" Yankovic
Wood Block, Noises [Duck Call], Whistle [Siren], Horn [Bulb], Noises [Ratchet], Whistle [Slide], Idiophone [Flexitone] – Jon "Bermuda" Schwartz

Written-By – Nadir Khayat
Written-By – Stefani Germanotta

Written-By – Rafael Akinyemi
Written-By – Nikesha Briscoe

Written-By – Allan Peter Grigg
Written-By – Lukasz Gottwald
Written-By – Phillip Lawrence
Written-By – Pete Burns
Written-By – Bruno Mars
Written-By – Steve Coy
Written-By – Justin Franks
Written-By – Tramar Dillard
Written-By – Tim Lever
Written-By – Mike Percy

Written-By – Scott Mescudi
Written-By – Oladipo Omishore

Written-By – Josh Kear
Written-By – Dave Haywood
Written-By – Hillary Scott
Written-By – Charles Kelley

Written-By – Christopher Stewart (7)
Written-By – Christine Flores
Written-By – Christopher Bridges
Written-By – Terius Nash

Written-By – P!NK
Written-By – Max Martin
Written-By – Shellback (2)

Written-By – Lukasz Gottwald
Written-By – Cathy Dennis
Written-By – Max Martin
Written-By – Katy Perry

Written-By – Adam Young

Written-By – Nathan Walker (2)
Written-By – Jamie Foxx
Written-By – Christopher Stewart (7)
Written-By – James T. Brown
Written-By – Brandon R. Melanchon
Written-By – John Conte, Jr.
Written-By – Christopher "DEEP" Henderson
Written-By – Terius Nash
Written-By – T-Pain
Written-By – Breyon Prescott

Written-By – Kisean Anderson
Written-By – Jonathan "J.R." Rotem
Written-By – Theron Thomas
Written-By – Timothy Thomas
Written-By – Jason Desrouleaux
Written-By – Keidran Jones

Written-By – Robert Larow
Written-By – Kamaljit Jhooti
Written-By – Jared Cotter
Written-By – Jeremy Skaller

Written-By – Taio Cruz
Written-By – Fraser T Smith

Written-By – Gaetano Lama
Written-By – S. Guski
Written-By – R. Martino

Written-By – Benjamin Levin
Written-By – Kesha Sebert
Written-By – Lukasz Gottwald

Written-By – "Weird Al" Yankovic

Engineer – Matt Cohen
Keyboards – Ray Manzarek

Keyboards – Jim West (2)
Written-By – Claude Kelly
Written-By – Lukasz Gottwald
Written-By – Jessica Cornish

Keyboards – Ruben Valtierra

Keyboards – Jim West (2)
Written-By – Ari Levine
Written-By – Bobby Ray Simmons, Jr.
Written-By – Phillip Lawrence
Written-By – Bruno Mars

Congas, Cowbell – Jon "Bermuda" Schwartz
Keyboards – Taylor Hanson

Engineer [Assistant] – Eric Rennaker
Programmed By [Keyboard] – Jim West (2)
Written-By – James Scheffer
Written-By – Clifford Harris
Written-By – David Siegel

Castanets, Bells [Sleigh] – Jon "Bermuda" Schwartz
Choir [Vocals] – Randy Crenshaw
Choir [Vocals] – Jim West (2)
Choir [Vocals] – Lisa Popeil
Choir [Vocals] – Steve Jay
Choir [Vocals] – "Weird Al" Yankovic
Choir [Vocals] – David Joyce
Choir [Vocals] – Monique Donnelly
Choir [Vocals] – Scottie Haskell
Choir [Vocals] – Angie Jaree
French Horn – John Dickson
Handclaps – Jon "Bermuda" Schwartz
Handclaps – Jim West (2)
Handclaps – Steve Jay
Handclaps – "Weird Al" Yankovic
Keyboards – Kim Bullard
Orchestrated By – Steve Jay

Animation, Film Director – JibJab

Animation, Film Director – Bill Plympton
Artwork [Colorist] – Lindsay Woods
Executive Producer – Ron Diamond
Film Producer [Supervisor] – Desirée Stavracos

Animation, Film Director – Divya Srinivasan

Film Director – Liam Lynch

Animation – Brad Rau
Animation – Sam Chi
Animation – Alan Lau
Animation – Kenn Navarro
Animation – Tony Cliff
Animation [Assistant] – Jamaica Dyer
Animation [Assistant] – Kris Toscanini
Art Direction – Roman Laney
Film Director – Roque Ballesteros
Film Producer – Julie Moskowitz
Film Producer – Corrine Wong

Animation [Lead] – Steven K.L. Olson
Film Director – Dustin McLean (2)
Film Director – Josh Faure-Brac

Animation, Film Director – Augenblick Studios

Animation, Film Director – Brian Frisk

Animation, Film Director – Cris Shapan

Animation, Film Director – Koos Dekker