* In the hip hop world this is known as a "posse cut," which is a song that features at least four consecutive verses by a different rapper. For example, "The Anthem" by Sway & King Tech, featuring RZA, Tech N9ne, Music/{{Eminem}}, Xzibit, Pharoahe Monch, Kool G Rap, Jayo Felony, Chino XL, and KRS-One.
* Pigface is the side project of [[RevolvingDoorBand over one hundred musicians]]. While their individual tracks typically don't have a massive number of musicians, the credits to their albums are quite staggering, as most of them feature well over a dozen performers.
* Music/{{Weezer}}'s "[[http://www.youtube.com/watch?v=muP9eH2p2PI Pork and Beans]]" music video. It's got almost everything that ever appeared on Website/YouTube short of OK Go and WebVideo/TheAngryVideoGameNerd.
** There's an [[http://www.youtube.com/watch?v=xjbahK6Rk0U updated version]]. It is as though the internet gave birth.
* Music/BlakeShelton's 2013 single "Boys 'Round Here" features a huge cast of characters: co-writers Dallas Davidson and Music/ThomasRhett; producer Scott Hendricks; the Pistol Annies (a side project founded by Shelton's wife, singer Music/MirandaLambert, along with Ashley Monroe and Angaleena Pressley); and [=RaeLynn=], a contestant on ''Series/TheVoice'', on which Shelton is a judge.
** Taken UpToEleven on a remix released in June 2013 which has Music/JasonAldean, Music/LukeBryan, [[Music/BrooksAndDunn Ronnie Dunn]], Music/MirandaLambert, Music/RebaMcEntire, Music/BradPaisley, Josh Turner, Music/KeithUrban, and Music/HankWilliamsJr performing the "red, red, red, red, red, red, red, red, redneck" in the opener.
* Music/HankWilliamsJr has done this twice:
** His cover of [[Music/HankWilliams his father's]] "Mind Your Own Business" had Music/RebaMcEntire, Music/TomPetty, Reverend Ike, and Music/WillieNelson.
** His 1988 single "Young Country" featured several up-and-comers and also-rans: Butch Baker, Music/SteveEarle, Highway 101, Dana [=McVicker=], Marty Stuart, Music/KeithWhitley, and T. Graham Brown.
* Similarly, Travis Tritt's 1992 single "Lord Have Mercy on the Working Man" had backing vocals from Music/BrooksAndDunn, T. Graham Brown, Music/GeorgeJones, Little Texas, Dana [=McVicker=], Tanya Tucker, and Porter Wagoner.
* And Music/GeorgeJones' "I Don't Need Your Rockin' Chair" had Music/VinceGill, Mark Chesnutt, Music/GarthBrooks, Travis Tritt, Joe Diffie, Music/AlanJackson, Pam Tillis, T. Graham Brown, Patty Loveless and Music/ClintBlack participating in a [[CallAndResponseSong call-and-response]] at the end.
* The multi-artist album ''A Tribute to Tradition'' (1998) featured the new song "Same Old Train", featuring Clint Black, Joe Diffie, Music/MerleHaggard, Emmylou Harris, [[Music/AlisonKraussAndUnionStation Alison Krauss]], Patty Loveless, Earl Scruggs, Ricky Skaggs, Marty Stuart, Pam Tillis, Music/RandyTravis, Travis Tritt, and Music/DwightYoakam. This recording won the 1999 Grammy award for Country Vocal Collaboration.
* In July 2001, an all-star version of "America the Beautiful" made the country charts (and re-entering as a patriotic tribute after 9/11) featuring Trace Adkins, Billy Dean, Vince Gill, Carolyn Dawn Johnson, Music/TobyKeith, Brenda Lee, Music/{{Lonestar}}, Music/MartinaMcBride, Jamie O'Neal, Music/KennyRogers, and Music/KeithUrban.
* In 1967, all of the artists on RCA's country music division paid tribute to Chet Atkins with the song "Chet's Tune". The recording featured Eddy Arnold, Bobby Bare, Don Bowman, Jim Ed Brown, Archie Campbell, Floyd Cramer, Skeeter Davis, Jimmy Dean, George Hamilton IV, Homer & Jethro, Music/WaylonJennings, Hank Locklin, John D. Loudermilk, Music/WillieNelson, Norma Jean, Jerry Reed, Connie Smith, Hank Snow, Porter Wagoner, and Dottie West.
* Many {{Charity Motivation Song}}s are massive gatherings of famous singers, "We Are the World" being the most famous example.
* The credits to Mike Watt's first solo album practically reads like some kind of AlternativeRock hall of fame thanks to collaborations with literally dozens of musicians with their own bands. To list everyone who collaborated on the album would create a massive wall of text, so just take a look at his touring band at the time: Watt, himself, on bass and vocals, [[Music/PearlJam Eddie Vedder]] on vocals and guitar, [[Music/SunnyDayRealEstate William Goldsmith]] on drums, [[Music/{{Nirvana}} Dave]] [[Music/FooFighters Grohl]] alternating between drums and guitar, and [[Music/TheGerms Pat]] [[Music/FooFighters Smear]] on lead guitar.
* In 1995, Music/RebaMcEntire covered Patti [=LaBelle=] and Michael [=McDonald=]'s "On My Own" with guest vocals from Music/TrishaYearwood, Music/MartinaMcBride, and Linda Davis.
* In 2004, Music/JimmyBuffett did a cover of Music/HankWilliams' "Hey Good Lookin'" that featured guest vocals from Music/ClintBlack, Music/KennyChesney, Music/AlanJackson, Music/TobyKeith, and Music/GeorgeStrait.
* In 1997, Creator/TheBBC created a corporate film promoting their diverse music coverage, featuring the Music/LouReed song [[https://www.youtube.com/watch?v=WJpQJWpVJds "Perfect Day"]] sung by Music/DavidBowie, Music/EltonJohn, Music/TomJones, Suzanne Vega, Lesley Garett, [[Music/{{U2}} Bono]], Heather Small, Dr. John, Boyzone, Emmylou Harris, Tammy Wynette, Reed himself, and Laurie Anderson among others. The song was well-received enough to be released as the year's Series/ChildrenInNeed single ([[GermansLoveDavidHasselhoff and became the Christmas #1 in Ireland, staying atop their singles chart for 7 weeks]]).
** According to ThatOtherWiki there were also two other versions of the song, one sung by all female singers and one by all male singers.
* In October 2014, the above-mentioned "Perfect Day" received a SpiritualSuccessor in the form of a cover of Music/TheBeachBoys' "God Only Knows" (also released as a Series/ChildrenInNeed single while simultaneously marking the launch of BBC Music), featuring that band's lead singer Music/BrianWilson, along with the likes of [[Music/FlorenceAndTheMachine Florence Welch]], Music/{{Lorde}}, Music/SamSmith, Music/OneDirection, Music/EltonJohn, Paloma Faith, Music/KylieMinogue, Music/StevieWonder, [[Music/{{Queen}} Brian May]], Pharrell Williams, Music/DaveGrohl, [[Music/{{Pretenders}} Chrissie Hynde]], Jamie Cullum, [[Music/{{Coldplay}} Chris Martin]], and Emeli Sande. [[https://www.youtube.com/watch?v=XqLTe8h0-jo It has to be seen to be believed.]]
* Urban/contemporary Christian artist Kirk Franklin's 1998 song [[https://www.youtube.com/watch?v=PXBKaOkmQhw "Lean On Me"]] features guest vocals by [[Music/{{U2}} Bono]], Music/MaryJBlige, Music/RKelly, and Crystal Lewis. A remix of the song was included as a HiddenTrack on the album ''The Nu Nation Project''; the remix features additional vocals by Boyz II Men, Xscape, En Vogue, Music/NewEdition, Music/DestinysChild, K-Ci and Jojo, and Divine.
* The 2011 Series/ChildrenInNeed single was a cover of Music/MassiveAttack's "Teardrop" by "The Collective", a supergroup made up of Music/EdSheeran, Chipmunk, Mz Bratt, Rizzle Kicks, Labrinth, Wretch 32, Dot Rotten, Tulisa Contostavlos, Ms. Dynamite and Tinchy Stryder.