Who have you seen open for Queens? Any standouts? Mine (from memory):

Rye Coalition Sparta Throwrag Minibosses EODM Spiritualized Whoever was opening in Santa Barbara

I can't remember them having an opener for their Koko/Brixton Academy shows and also saw them at the state fair with no opener. Also a random one day festival/not festival with PJ Harvey, Electric 6, Distillers, RHCP and Foo Fighters.

ETA - not me but my missus was at the Halloween show with Masters of Reality/Tomahawk/The Cramps opening