Any publicity's good publicity, I guess.

Oh God.

Chad Michael Murray is dating an 18-yr-old who, incidentally, has a bit part on One Tree Hill. Her name is Kenzie Dalton, and she said of the relationship, "We've been going out since December ... Chad and I just hang out. We don't really go out at night. Sophia and I don't talk, but she is aware of our relationship."

Girls, if you want a piece of him, I suggest you look your hottest and turn up on set of One Tree Hill!

Here's another vid of Kristin Cavallari leaving an L.A. nightclub -- this time, Mood.

Kristin appeared on The Showbiz Show, where David Spade got right down to it and interrogated her about rumored-beau Nick Lachey:
David: Lets get to the bottom of this: I know the magazines are bull crap. Tell me the truth about Nick. Sorry, I talk in caps.
Kristin: Well, the truth is we're friends. We met at a party. He's a super nice guy.. There is nothing romantic going on.
David: Interesting. So, are you dating?
Kristin: Define dating.
David: I don't know, breakfast and money for a cab.
Kristin: No, we're not dating.
David: Interesting. How can it be over!
Kristin: David, you're not getting it. There is nothing going on.
David: Then why steal all Jessica's poses!
Kristin: I'm not.
David: Look at you!
Kristin: I'm not.
David: Are you denying you were standing. She was standing and so were you.
Kristin: Alright. I did stand about a week ago.
David: Uh huh.

And according to Star magazine, Mr. Ex Jessica Simpson has been whispering sweet nothings in Kristin's ear: An insider said he's been "acting like a man in love ... He's taking the relationship very seriously ... He can't stop telling Kristin how much prettier she is than [ex wife Jessica Simpson]. He says she's a lot more sensible and level-headed, and he loves hanging out in her small, messy apartment in Marina del Rey." According to Star, "Another source added that Nick and the Laguna Beach star didn't 'seal the deal' until the fourth or fifth date, prompting Cavallari to believe the romance was serious 'because he wasn't pushy about getting physical.'"

Tsk, tsk. There's something you're hiding from us, K ...