While you can never know for certain, there are some public figures that you just imagine would be fun to hang out with, jam with. Willie Nelson has always seemed that way to me.
Let's hijack this thread, what famous person that you've never met, strikes you as fun to hang with.
I'd like to hang with Al Franken, and Weird Al Yankovich. As you might guess, I value humor as an important ingredient to social intercourse.