The sound I'm talking about is at :20 in this video throughout the whole verse:
Also at the beginning of this "It's your birthday"
All throughout this song....
I know he has a crazy range....but I can't help but think that the low voices are processed because they sound different than someone just singing low. I was thinking an Octaver or something that replicates the low frequencies but I'm kind of at a loss. No it's not just pitched down, although he does use that technique but it doesn't sound like Dirty South pitching down. Any ideas?