do they know it's halloween?

the rather sprawling video can be found here, featuring the likes of:

ARCADE FIRE'S WIN & REGINE
BECK
BUCK 65
DAVID CROSS
DEVENDRA BANHART
DESSERT’S LIANE BALABAN
ELVIRA, MISTRESS OF THE DARK
FEIST
GINO WASHINGTON
LES SAVY FAV'S SYD BUTLER
ISLANDS' J'AIME
MALCOLM MCLAREN
NARDWUAR THE HUMAN SERVIETTE
PEACHES
POSTAL SERVICE'S JIMMY TAMBORELLO
REDD KROSS’ STEVE MCDONALD
R.E.M’S JOEY WARONKER
RILO KILEY'S JENNY & BLAKE
ROKY ERICKSON
SLOAN'S CHRIS MURPHY
SMOOSH'S ASYA & CHLOE
SONIC YOUTH'S THURSTON MOORE
SPARKS' RUSSELL MAEL
SUBTITLE
SUM 41'S STEVO
TAGAQ
THAT DOG’S ANNA WARONKER
WOLF PARADE'S DAN & SPENCER
YEAH YEAH YEAH'S KAREN O

the world could've used another 'studio group singalong' video, but y'know...logistics.

edited to add: the caps are theirs, not MINE.-except those ones. also, is this song kinda _______?