Which celebs are known democrats or republicans?

I know that the Dems claim:
Janeane Garofolo
The entire Cast of Oceans 11
The Dixie Chicks
and Barbara Streisand

Obviously the Repubs claim Arnold and Mel

which other celebs are politically out?
Update: just so you all know - the lists on wikipedia are NOT very accurate...

Roseanne and Billy Bob Thorton are not republicans, I'm sure...
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