I think Chester is definitely the main voice in the chorus, but for sure there are layered vocals from another band member, or Chester singing some kind of harmony or something. I can hear that there's some voice that sounds different, but you never know. He sounds very different live, either because it's hard to replicate or because of the layered vocals/other vocalists.
Regardless, the point was it's a small part that Chester plays in the song. He doesn't even sing actual words but for 30 seconds.
I would like a progressive rock album, that would be sweet, but keep at least a little bit of rapping, it's hallmark trait of LP's music
A longer, progressive concept album would be right up my alley. They can keep the interludes and whatnot, but the whiners will have to shut up about there being "too few actual songs". About in hour in length, maybe. It's not that far-fetched, is it?