In his new book, Michael Show revisits his awkward years for all of us to enjoy. In a related segment on Late Night, he reveals what the guys, girls, and dorks liked back in the day.

On a recent episode of Shameless, William H. Macy got down and dirty with Joan Cusack. Which would have been totally fine—if he hadn't babysat her years ago.

Survior's new season begins tonight and to promote it, Jeff Probst and his boner appeared on Late Night. Full disclosure: it was actually one of those "clothes boners" that the kids used to joke about back in middle school.

In her interview with Jimmy Fallon last night, Victoria Beckham came across more likable than any appearance we've seen her do. She spoke about her pregnancy, saying that she feels incredibly lucky to have a 4th child on the way.

You might think that a bombshell like January Jones would have other plans on Valentine's Day than making an appearance on Late Night With Jimmy Fallon. She find the holiday to be "anti-climatic" and "always a let-down."

Aziz was lucky enough to ring in 2011 with Jay-Z, Beyoncé and other famous folk in Vegas. His luck changed when Jay-Z called him onto the stage at 4am in an inebriated state to tell a "New Year's joke."

On the latest edition of "Justin Bieber's Reflections"—a regular Late Night staple—there was an added bonus: the real Justin Bieber. The Biebs and Jimmy (dressed as Justin) high-five and dance around together in-between the poignant "reflections."

On Late Night, Nick Swardson predicts this year's best movie and lets us in on some of his new projects. his oscar-inspired projects include: Black Swan and Inception.

The new season of Justified premieres tonight and to celebrate, Timothy Olymphant and Jimmy had a shoot-off—complete with cowboy hats and all. Clearly, Jimmy should probably leave Tim to the whole Western thing.

And to think that we didn't even know that there was such a thing as a celebrity walking impression. He's definitely got that Larry David walk down, though!

On Fallon, Alex Pettyfer (from I am Number Four fame) dodges a question by awkwardly taking a sip of water when Jimmy asks him whether or not he is dating Dianna Aragron (of Glee fame).

By now we can all agree that Angry Birds may just be the most popular game ever released for the iPhone. But wouldn't you rather flick Larry Bird's head into a block that will then squish teeny tiny Magic Johnson's?

On Late Night, Adam Scott talks his depression over working with A-list hotties like Megan Fox and Rob Lowe. What would seem like an escape to a smoking hot paradise is like being "covered in diarrhea" to Adam.

Have you ever participated in one of Late Night's twitter hashtags? Jimmy Fallon, the writers and producers who work on the segment walk us through the creative process and the impressive amount of effort they put into it each week!

Portlandia begins tonight on IFC! Naturally, Fred and Carrie took to Jimmy Fallon's show for a game which involved drawing random songs to perform with instruments they had never played before. Let's see how it all worked out.

On Late Night, 89 year-old Betty White doesn't understand why Regis is retiring at the ripe old age of 79. Then she tells us the first thing she would do if she took over for him.

Did you happen to catch this? While delivering his monologue jokes last night, Jimmy busted out both the Charleston, Jersey Shore fist-bump and the "traditional" (stereotypical?) Russian dance. I think his moves enhance the jokes, don't you?

Last night on Late Night, Steven Tyler obliged Jimmy in performing his hit "Walk This Way." It's a pretty serious rendition, and they even busted out the classic white Adidas shoes!

Between getting recently engaged, crying constantly on the set due to Margene's "big secret," and wrapping the final season of Big Love—Ginnifer Goodwin has been crying a lot lately. Here's why.

Bobby Moynihan, how we love thee! As if his portrayal of Snooki on SNL wasn't enough, last night's revelation that he spent his 30th birthday painted orange and wearing a poufy-haired wig for the role sealed the deal.