Mary-Kate Olsen made a creepy and uncomfortable appearance on David Letterman last night to promote her new film The Wackness. Mary-Kate talked about spending her 22nd birthday at Bonnaroo, making out with Ben Kinglsey, and not wanting her kids to be child actors. Then she talked about Spencer Pratt, who Mary-Kate said she went to high school with. Dave mentioned Spencer is a little "wormy," and "oily."

Mary-Kate: He does not have a good temper. He walked out of a few games. He would walk off the field. He was like, ’Me or the coach!’

Dave: Were you friends with the guy at the time?

Mary-Kate: No.

Dave: Because I’m surprised about the soccer. Because looking at the guy, he looks like a guy that has never broken a sweat, I would guess.

Mary-Kate: Oh, my God - that brings up stories! I don’t know if I should talk about it.

Dave: No, c’mon, let’s hear one. Let’s go.

Mary-Kate: [laughs] The Wackness is a great film.

Dave: What I don’t understand is how does a kid that age, and he’s only in his 20s or maybe even your age, how does a kid like that get to be so oily?

Mary-Kate: It’s a mystery to me.

Dave got a little tickle fantasizing about Mary-Kate making out with a guy his age.

Will Smith kissed David Letterman last night on Dave’s show. Tom Cruise is going to be so jealous. The kiss happens in the first video at about the 1:30 mark.

See part 2 of Will’s appearance on Letterman after the jump.

CLICK HERE TO READ THE REST OF THE STORY …

Spencer Pratt was on David Letterman talking about how great he is, and Dave made it clear that he doesn’t like Spencer, and thinks Spencer is a loser. Spencer tells Dave he won’t go to a club unless he gets paid $100,000, which Dave calls B.S.

My favorite part is when Dave talks to Heidi Montag in the green room, and she says Spencer’s the man, but Dave responds "Uh, for what?" Heidi didn’t know what to say. Dave is the man. Dave has Spencer all figured out. Spencer is so arrogant.

Poor Hillary Clinton is getting it from all sides today. Last night it was from David Letterman. We’ve said it before, and we’ll say it again. Hillary needs a reality TV show.

Why would anyone want to interview Ali Lohan? Oh yeah, she’s Lindsay Lohan’s sister. David Letterman couldn’t forget that fact last night when he accidentally called Ali Lindsay Lohan. Hahaha!

Ali hasn’t done anything, except appear on her mom’s reality show, but we have high hopes she’ll be a bigger mess than her big sister Lindsay. We all know where Ali is going, and so does her mom. She could be in rehab by sixteen.

Click below if you want to see the entire interview.

CLICK HERE TO READ THE REST OF THE STORY …