The only famous person I've met is John Smoltz, and I don't think he's that famous unless you like baseball. He plays on the Atlanta Braves.
And I've met these people that aren't really that famous, but anyway: All of the Moffats, Diana DeGarmo when she was like 12(she opened for the Moffats), and the people from LFO.
But I've never met anyone actually famous.