Kate Erbland

Alert, alert: Will Smith still has it. The star of the upcoming con man romantic comedy drama (co-ma rom-com-dram?) Focus hit The Late Show last night to chat it up with host David Letterman and, oh, yeah, to just randomly rap “Gettin Jiggy Wit It” alongside Letterman’s own band. Sure, most late night guests just walk out on stage, give a big hello, and sit down, but not Smith, who seemed determined to remind everyone of his rap roots.

Stay with this one. On last night's 'Tonight Show,' Hugh Grant appeared to chat about various things -- including his new Valentine's Day-timed rom-com release, 'The Rewrite' -- before joining in on a spirited game of Hallway Golf with host Jimmy Fallon and special guest Charles Barkley. Despite a slow start -- it appears that no one really understands the rules or even cares about them -- this game eventually does pick up.

Thank goodness for iPad apps. On last night's 'Tonight Show,' host Jimmy Fallon -- who grows more California by the minute, as the show has temporarily relocated to the West Coast -- and guest Will Smith decided to finally give the people what they want: rapping. Well, sort of.

It was inevitable. After less than a year on the air, the Jimmy Fallon-starring 'The Tonight Show' has finally found something to supercut: its own weirdly engaging 'Ew!' talk show. Fallon's take on a teen girl talk show (like all teen girl talk shows, it takes place in a basement and doesn't appear to be broadcast to anyone) explores everything that is particularly gross -- er, "ew" -- to the teens these days. What's gross? Everything. Ew!

Jimmy Fallon's 'Lip Flip' must be stopped. It has to end. Sure, the technology that drives this particular 'Tonight Show' segment is vaguely impressive (there are lips! and then they get flipped!), and Fallon and his various guests appear to have a good time pretending to talk out of each other's mouths, but the final execution is so terrifying, so weird, that it can only do one thing: cause nightmares.

Of course, the real joke of 'Tonight Show' host Jimmy Fallon's adoration for translating current rap and hip hop songs into Broadway versions is simple, it's in the text. It's current songs made into Broadway versions. Easy! But the difference between an okay "Broadway covers" sketch and a great one is how much Fallon and his chosen guest sell it.

It's Water War! Jimmy Fallon's most bizarre and icy cold game yet! A game of chance, and um, hydration, Water War pits the 'Tonight Show' host against an especially down-for-whatever guest (after all, what sort of person would be okay with having water poured all over them on national television? a cool one, that's who!) in a battle to see who can get more soaking, sopping wet. That's the aim of the game, right? No? Then 'Blackhat' star Chris Hemsworth lost? What kind of world is this?!

Kidman and Fallon have previously met—all celebrities know each other, obviously—but while Fallon remembered their years-ago hang as a sort of weirdly casual thing, Kidman recalls it a bit differently. For Kidman, it was a romantic prospect, and the look on Fallon's face when he realizes what might have been is genuinely priceless. You really blew this one, Fallon.

Jimmy Fallon and Justin Timberlake are pals. Like, serious pals. These guys make Apple commercials together, which is a true mark of friendship if there ever was one. On last night's 'Tonight Show,' the duo decided to team up for another round of, well, just whatever the heck it is these two do together.

For his latest round of "Celebrities Read Mean Tweets," Jimmy Kimmel trotted out his most star-studded line-up of celebs yet, including Gwyneth Paltrow, Lena Dunham, Gerard Butler, Ty Burrell, Bob Newhart, Britney Spears, Geena Davis, Chris Pratt, Chloe Grace Moretz, Scott Foley, Michael Chiklis, Ted Danson (Ted Danson? who tweets mean things about Ted Danson?), John Stamos, Lisa Kudrow, and Adam Sandler. But he also rounded up the meanest collection of, well, #meantweets ever. These tweets are really mean, you guys!