Will Ferrell is the latest celebrity to pledge his public support
for Barack Obama
ahead of the 2012 United States presidential election against Republican Mitt Romney tomorrow (November 6).
actor stars in the Funny or Die comedy clip, which sees him offering to eat toe nail clippings or garbage as long as the US public vote for Obama.
So we take a look at the other Democratic celebrities backing Obama - from Katy Perry wearing her political persuasion on her latex dress
to Madonna inking the president's name on her back