I can't imagine ZZ Top are dems but could be wrong. Saw ZZ Top on TV playing with some country band on the country version of VH1 - can't remember the country dude's name - popular guy though. They were cooking.
I believe ZZ Top sent Rush some specially recorded music to use as "buffer music" for his show and stated they listen often.
I'd love to see Alice Coper at the RNC. Perhaps he could sing "Go to Hell" and dedicate it to Osama !! LOL