Mike the Executioner
What went on up there? Poppers and weird sex!
All of this is possible. Artists start and scrap projects all the time for various reasons. Nas has an entire album he recorded for Def Jam that we’ll never hear because he scrapped it in favor of doing Nasir with Kanye. He’s also got an album with Swizz Beatz that Swizz has been waiting for damn near a decade to release. Kanye’s got like three scrapped albums. Ghostface has a Doom produced album we’ll unfortunately never hear. And so on and so forth.
With Kendrick we even got a peak into his creative process with Untitled Unmastered
It's crazy how many unreleased projects are out there, fully finished, that we're never going to hear.
Lauryn Hill has multiple unreleased albums.
When Eminem did Relapse, he recorded four albums' worth of material for it. Relapse 2 was supposed to come out the same year as Relapse, but he scrapped it because fans and critics didn't get Relapse and he made Recovery instead.
You could take almost every Michael Jackson album and replace the entire tracklist multiple times without repeating a song. That's how much material he has in the vault.
OutKast was supposed to release three albums in 2009: An Andre album, a Big Boi album, and a group album. I don't even know if they were ever finished.
Slaughterhouse had the Glass House album, which was supposed to be their comeback after their second album flopped and it never came out.
And apparently, Kendrick had an entirely different album prepared after GKMC, which would have been more similar to it sonically. Then he went on the trip to South Africa and made TPAB instead.