Okay, I want Broken Social Scene's bassist(s?), Curtis Mayfield's horn section, Jeff Mangum on Irish bagpipe, Sigur Rós's xylophonist, Stars' keyboardist, Jens Lekman on ukelele, the keytarist from 2 Skinnee Js, all of Animal Collective on percussion ONLY, Architecture in Helsinki's synth, Braid's drummer, Kevin Shields, Carrie Brownstein, and Brian Wilson on guitar.
vocals: Sam Cooke, Nico, Ted Leo, Kelli Ali, Ben Gibbard, Jenny Lewis, Hope Sandoval, and anybody else in the band that wants to chime in. Especially Jens Lekman and Jeff Mangum.
Production duties shared by Chris Walla and Dave Newfeld. Ted Leo can join in on guitar too if they say it's okay.
I should probably get some strings in there but I don't really know who's good, and I don't want to be like "UHHHHH ANDREW BIRD OR FINAL FANTASY ON VIOLIN."