I didn't know this one. Is it the "na na na" part?
Naming off all of those people on one song actually reminded me of that Ace Enders and a Million People cover of "Bittersweet Symphony" that featured Mark Hoppus, Matt Thiessen, Kenny Vasoli, Bryce Avary, Craig Owens, Aaron Marsh, Duane Okun, and Alex Gaskarth. A Million People is probably my least favorite thing Ace has done musically, but that was a pretty cool idea.
Damn, how did I forget to mention this song? Amazing track.
As for the FOB's one, the part that features all those guests is actually right before the ending. One of the most spectacular things I've ever heard in my entire life:
There's also a guest from Elvis Costello in the same song.
Duritz in "So Long, So Long" like somebody said, and Keith Goodwin in "Left Coast Envy" by The Starting Line. Didn't even know it wasn't Kenny until somebody on here pointed it out. Also, Brandi Carlile's backups (although subtle) on "Restless Dream" by Jack's Mannequin are awesome too.
Dallas Green on ETID "INRIhab"
Daryl Palumbo on Finch "Project Mayhem" & "Grey Matter"
Daryl Palumbo on ETID "Chomping at the Bit" -- In fact pretty much every DP guest vocals
Almost every guest vocal on In Defence of the Genre
Mark Hoppus on Box Car Racer's "Elevator"
Robert Smith on Blink-182's "All of This"
Jeremy Carr on Patent Pending's "Anti-Everything"
Bethany Cosentino on New Found Glory's "Caught In The Act"
Ryan Key on Silverstein's "Stay Posi"
Mark Hoppus on MXPX's "Wrecking Hotel Rooms"
Ryan White on Flyleaf's "So I Thought"
William Beckett on Cobra Starship's "Snakes On a Plane"
Not a huge SYG fan, but there are a few solid songs on that record, and I do like the way they incorporated her guest spot into that song. Do you know if they do that little stop in the song during live performances? Obviously she can't be there for every show, so I feel like that transition would be kind of awkward live.
Sometimes they'll bring out a vocalist from a band they're touring with to do that part. Other times, when the music cuts out, they'll just yell hype phrases out at the crowd and then when the music comes back in, they alternate singing that part themselves.