Eminem's "Walk on Water" has the highest of high-profile guests singing its Skylar Grey-penned hook. But originally, Beyoncé's spot was supposed to belong to another world-class singer.

In a new interview with ThisIs50, longtime Eminem producer Denaun Porter revealed that Queen Bey's spot was at first reserved for Adele. At the 2:40 mark of the video above, Porter explains why that didn't come to pass.

"I think some things happened with her with her voice, and she couldn't do it," he says. "So it was a thing where we tried that... But then it got to them using Beyoncé. My mind was already there. There's only a couple people that could pull that off."

In the rest of the lengthy talk, Porter talks about his role in Revival's creation, his beatmaking processes, and more. He also confirms just before the 6:00 mark that 2 Chainz originally had a verse on the PHresher-featuring "Chloraseptic." 

"There's a 2 Chainz verse, for sure," Porter explains. "What happens is, when Em gets locked into a song a certain way, I try not to touch that. I try not to fuck with that... Originally, I wanted to put 2 Chainz on the song. That was my idea... We had 2 Chainz come out, and he was working on the hook. The hook didn't turn out the way we wanted it, but the verse was incredible. But the song kind of leads up to another song, so we didn't want to change the verses that was on the original version. So we did have PHresher do the hook... So it turned out we used his hook. But there's another version of the song, and 2 Chainz is on that version."

You can watch the entire interview above.