Conan O'Brien, who hosted Neil Patrick Harris Friday and Tim Gunn on Monday, welcomed Anderson Cooper to his show last night and the silver fox was about as charming, funny and bitchy as I've ever seen him! He sits down and before the interview gets underway, he says to Conan: "Your hair has incredible cresting today...it's like breaking waves."

Anderson talked about moderating a recent debate of Republican presidential candidates at the Ronald Reagan PLibrary: "I tend to sweat more than Albert Brooks in 'Broadcast News.'" Sitting in the front row was Arnold Schwarzeneggar who, before the debate began, motioned to the very buff Anderson that he noticed how much he's been working out.

"I was completely thrown that Arnold Schwarzeneggar had noticed I've been working out ... so for the first time minutes, I was kind of flustered."

On blogging: "My New Year's resolution is to blog more...but it's strange because it allows all your stalkers to be at the same place at the same time."

On subbing for Regis Philbin: "I had a hard time with Nicole Richie...I literally could not think of one question to ask her. All I could think to ask her was, 'Why are you so friggen thin?' And that didn't seem appropriate. She was there to promote a book she was allegedly writing. I was actually working on a book so it was really pissing me off!"