What did you do processing-wise on the "mofo" backing vocals?
My dad used to do London-New York quite a lot for work, one time in '97 he ended up sitting next to Howie B who worked on that record. They were both from Glasgow and hit it off, Howie gave him a copy of Pop and Passengers: Original Soundtracks and invited Dad to a party Bono was throwing. I was furious with him for not going.
The nice thing about Pop is how ludicrously messed up it is, in basically every sense. Their most overtly religious record, I think, yet at the same time so grimy it doesn't creep me out. Called "Pop" and filled with dance grooves, but some of the heaviest guitar work Edge ever did, and with some crazy production choices thanks I suspect to the unfinished mixes/parts.
I think the stuff that came after, even the smash hit stuff like "Beautiful Day" or "Vertigo", felt like it was coming from a different place. I'd be really curious to see what their standing in culture would have been if they'd thrown in the towel after Pop.
backup vox were....my memory is hazy but i think it's just the mda combo plugin, probably on 'radio', and then some fake space echo. there might be some mda resonant filter too. the backup vox on the 2nd and 3rd verses are me making my singing debut, i couldn't figure out what the words were so i just said "little rat man" and that seemed close enough haha. the rest of the vox are a friend of mine, who did a fine job playing bono.
that song is not really much of a SONG, but i always loved that groove and that bassline, so i figured it'd be a good challenge to try and recreate it. it turned out to be a total ridiculous mountain of work, i literally spent a whole month on it. i'm never doing that again! good learning experience though. you wouldn't know it from a casual listen, but edge is playing some super hip rhythm guitar on that track.
i don't think pop is a great record they way joshua tree and achtung are, BUT it is really fun to listen to and it's not as emotionally heavy as achtung. like, when i get to the end of achtung i don't feel the urge to start it over again, but i can listen to pop on repeat all day. 'do you feel loved' is one of my favorite tunes ever, that tune is basically perfect, 'last night on earth' is catchy as hell and has yet more killer rhythm guitar, larry mullen cops 'levee breaks' on 'miami' and does a better job of it than most people do.
the first time i heard 'vertigo' i thought "this tune is stupid". the second time i heard it i thought "so what. this tune makes me feel good".
the first time i heard 'elevation' i thought "this tune is REALLY stupid". the second time i heard it i thought "i can't think, i'm dancing!" i mean you would really have to be a curmudgeon if that song doesn't get your toes tapping a bit. it makes me jump around the studio like a teenager.