Star Wars Records

British satirical magazine Private Eye has had a feature like this for years. They tend to be British political and pop culture figures, but they're often hilarious. They make it more funny by swapping the names under the pictures:
http://www.private-eye.co.uk/sections.php?section_link=lookalikes&lookalike=110
http://www.private-eye.co.uk/sections.php?section_link=lookalikes&lookalike=105 (ex-London Mayor Ken Livingstone)

(hint: change the 110 at the end of the URL to go back and look at the old entries.)

The one about Donatella Versace is hilarious.

Nah, Bob totally looks like Vincent Price these days.

Where is the one with space cadet G.W and Uranus?

Dylan's looking like a cross between John Carradine and Vincent Price. Either way, I could still see him tying some beautiful young maiden to the railroad tracks.

Glenn Close as Robocop, nice.