More importantly, who cares?
I mean, jeez, why would anyone possibly care who a particular actor or singer thinks is the bee's knees as a candidate? I suppose if they can speak eloquently and articulate their support that's useful — but usually celebrity endorsements are sort of a cookie cutter "Dude standing next to me is a cool dude, so vote Dude, dude" kind of a thing. #ddtb
Reshared post from +David Kurtz
Fun chart on the futile race for meaningless endorsements:
Embedded Link
Celebrity Deathmatch | TPM Media
Who Has More Celebrity Endorsements?

I feel the same way, especially anytime Alec Baldwin (he never did move to Canada, did he?) and/or Sean Penn open their mouths on the subject. They're entitled to an opinion, sure, but it shouldn't carry any more weight than yours or mine.
I agree, regardless of the political spectrum.