Oprah. And she opened fire on me! Sheesh, what have I ever done to piss her off?
I dreamed I was Scarlett O’Hara from Gone with the Wind…does that count?
I also dreamed not long ago that the members of N Sync and Backstreet Boys were fighting over me (uh-huh, sure :P), as I discussed with Johnny Depp how stupid they all were.
I could go on, I’m sure… 
I had a singing, dancing Richard Simmons. Needless to say, I woke up in a cold sweat.
I interviewed Eric Clapton and George Harrison, then in real life the phone rang and I thought “Eric or George will answer it” and went back to sleep.
I played ultimate frisbee with Redman.
Steve Urkel was my neighbor’s adopted son.
Robert Redford (several times)
Kevin Kostner (remember the kiss he described in Bull Durham? This was it!)
Sam Waterston
Only one.
Samuel L Jackson, shaved head style, was running around like a maniac, trying to kill me in a Dillards, with a wicked-cool decorative dagger. I got away by putting some plastique in a shoebox and detonating it when he passed through the shoe section.
Dead serious. 
Orlando Bloom. We were in an elevater or something together, some kind of thing that required us to be in close proximity for a reasonable amount of time. I told him his wardrobe sucked, or at least that’s what everyone online said, and he seemed amused. I also wondered if it would be too geeky to get him to autography my shoulder, so I could get it tattooed.
Several years ago, I dreamed Enya told me she wanted to have a baby with my father. Very wierd. Then one morning a couple of months later while one of her CDs was playing I dreamed that the two of us were in a car going over some kind of winding rainbow up in the sky.
Aussies - a few months ago I dreamed I was locked in the basement of Sydney’s Dental Hospital…
…with Bert Newton.
It was kinda funny. We didn’t get on, but were civil to each other. I think we had some toast together.
That reminds me. I also had a dream with the entire cast of Buffy. For some reason, Spike was featured. 
Aaron Carter and Leonardo di Caprio, sitting with me in a dingy dorm in Moscow, giving autographs to 12-year-old girls and listening to my reassurances that the cockroaches aren´t that dangerous, really, they´re much larger and nastier in the smaller rooms (where the fans were living - the poor girls were really freaked out). Leonardo didn´t believe me though and pulled his legs up on the bed.
I´ve got no idea why those two, I was never a fan of either and I hadn´t even seen a di Caprio film at the time…
But then again, in the same dream a little later a big stern Russian teacher turned up and told us thousands of penguins die every year because they sleep so long that they starve. Wasn´t supposed to make any sense, I guess…
Carol Burnett. We talked about the spirits of our grandmothers.
G.W. Bush and Vince Neil
Joe Elliott
http://members.aol.com/joe4jesus/index.htm
I had a foot fetish dream once with Roger Moore. Uh, FTR, he had the fetish- my feet, but his fetish.
Fran from Travis and Jimmy Nail in the same dream. Fran walked past me in the street and then I went swimming with Jimmy Nail in the pond.
Odd.
Eric S. Raymond. He was signing autographs for a beggar to sell so he wouldn’t have to beg. We really, really wanted one of his autographs. That’s it. Not much of a famous person, though I wouldn’t mind meeting him.
I had a dream about three of the guys in nsync, we went travelling or something, I remember a spaceship being involved, it was weird but one of those fone ones. Im not even an Nsync fan thats the weirdest part!
Danny Bonaducci was chasing me through a huge hotel, trying to kill me. Eventually, he developed psychic powers and started using other people to try to kill me too.
Durgh. Last night I had what might just be the most bizarre dream I’ve had since childhood. I was on a bus, sitting and minding my own business, and there was this … living detached head sitting near me. Next to it was a kid whose face was the same as that of the head.
Within the next moment or two, it became clear that both the child and the head were wearing latex masks - the head was Michael Jackson (still just his head, mind you, which seemed perfectly normal in the dream), and he was with a child. When they realized I recognized them they both ran off the bus and I was stopped from chasing them by a female bodyguard.
But I think that’s my only celebrity dream, unless you count the one I had as a kid with Inspector Gadget.
I once attended the Grammies as a special guest of the Corrs.