Russell Brand went onto The Tonight Show to talk about his new movie, what makes him sexy, Venus and Serena Williams, amongst other hard hitting topics of course. Needless to say, Katy Perry is in for an interesting marriage.

When he was at Harvard, Conan O'Brien and some friends stole a costume from the actor who played Robin. Funny prank! Here's another: O'Brien just submitted his version of The Tonight Show to the Emmys, to compete against Leno.

Chris Matthews played a little hardball with Chelsea Handler last night on The Tonight Show when he made a jab at Chelsea's comprehension skills. Need a little ice for that burn?

Charles Barkley, whose blunt hilarity always delivers, is one of the most entertaining late-night talk show guests. Tonight, Barkley sat with Jay Leno to discuss LeBron James' future, Kobe Bryant's fashion faux pas, and the NBA playoffs. Video highlights inside.

Last night, Bill Cosby visited The Tonight Show to perform a stand-up sit-down comedy routine, and he pseudo-bombed. After recounting an awkward conversation he'd had with a friend to the audience, Cosby was startled by the show's band. Video inside.

Despite the annoying "Betty White to Host..." Facebook groups following her SNL appearance, overkill is a word that shan't apply to her. Tonight, White chatted it up with Jay Leno about Jay-Z's inappropriate touching, SNL, Liberace and more. Videos inside.

Here are the funniest moments of Conan O'Brien's recent visit to Google's Silicon Valley headquarters, including the comedian riffing on Google's "entitled a-hole" staff—and a cutting impersonation of Jay Leno that apparently violated legal constraints.

Jay Leno: afraid to insult people directly, but not honorable enough to just avoid it altogether. During last night's monologue, Leno showed a fake Facebook page for the accused Times Square bomber. Under his favorite pages? "Team Coco." Video inside.

Remember Jay Leno's lackluster jokes that he told at the White House Correspondent's dinner? As it turns out, they were just a bunch of recycled jokes to begin with. Politico has compiled all of his repeat, lazy jokes here.

18 years after Jay Leno was chosen over him to host The Tonight Show, and months after Leno took the title back from Conan O'Brien, David Letterman is still bitter. Inside, video of Letterman's anti-Leno statements on tonight's Late Show.

Yeah, Conan, we get it. You got screwed out of a job. Now that your ill-advised interview on 60 Minutes is over, it's time to lay that to rest before your fans begin to turn against you.

According to the Daily Beast's Lloyd Grove, "the razor-sharp jokesters from The Daily Show" helped write Obama's White House Correspondents' Dinner speech. It's not hard to out-funny Leno nowadays, but that's like bringing a predator drone to a knife fight.

Tonight, Conan O'Brien made his long-awaited return to television with an interview on 60 Minutes. O'Brien was candid about the entire Late Night Wars fiasco, taking shots at Jay Leno, Jeff Zucker and NBC in the process. Video highlights inside.

On Sunday, the ancient news program will send out another broadcast from its nursing home, this time about that comedian its grandson likes, Conan O'Brien. CBS has released an excerpt, and it is vaguely juicy? Conan talks tough-ish about NBC.

Letterman decided to treat Leno like he was the pinata at his own birthday party by cracking a few jokes at his expense. Reviving the late night wars, he takes another opportunity to call out Leno for being an 'ass.'

We present following clip to you, not because we enjoyed it, but because we were left thinking "WTF." Click to watch Terry Bradshaw hop out of Jay Leno's oversized Birthday Cake in nothing more than his boxers if you dare!

Last night Jessica Simpson talked about her addiction to Nicorette gum. It wouldn't be so odd if she didn't admit next that she's never smoked a cigarette in her life. Her rationale? "It feels like a party in my mouth!"

Today at Gawker.TV, David Letterman reveals his true feelings about Jay Leno to Dr. Phil, Mira Sorvino flashes the audience of Martha Stewart's show, Chuck begins again, and MTV's True Life dives right into the Hamptons.

Recently, Jon Stewart said, "Go fuck yourself" to Fox News. Then, Bernie Goldberg attacked Stewart. Tonight, Stewart responded, issued his own attacks at Goldberg and Fox News, and said, "Go fuck yourself" again (with a gospel choir). Videos inside.

After being asked what it was like growing up in the "projects," Tracy Morgan told Leno all about standing in the free lunch line with neighborhood friend, Jay-Z. He also claimed he was born on the Coney Island Cyclone. Lies.