If you're like us and value your sleep, you probably nodded off into your Ambien dreamland before the party started on post-prime time TV. Don't worry; we've got you covered. Here's the best of what happened last night on late night.

Naomi Campbell is celebrating her 29th year modeling, so naturally she visited "The Late Late Show" and taught James Corden how to strut his stuff on the runway. Watch James, Naomi, Nick Kroll, and Katherine McPhee get their model on in the clip below. You seeing this Karl Lagerfeld? Because you should probably hire James for FW2015.

Yesterday was Tax Day (oh joy!), and the entire country was in the mood to celebrate. Or, at least James Corden was. He and Katherine McPhee teamed up to sing Tax Day carols set to the tune of some popular Christmas songs –– because after all, this is "a time when Americans joyously donate up to 39.6 percent of their income to the government!"

Hilary Clinton is running for POTUS, which gave the hilarious folks at "Jimmy Kimmel Live" an opportunity to hit the streets of L.A. to ask people their thoughts and feels on some faux campaign logos. The results? Amazing as usual.

Kiernan Shipka is wrapping up "Mad Men's" final season, but did you know she got her start doing skits on "Jimmy Kimmel Live?" In fact, Kiernan booked "Mad Men" in the "Kimmel" parking lot. Check out her impersonation of Britney Spears below!

In case you aren't aware (doubtful!), David Letterman's retiring and celebrities the world over are super bummed. Apparently, Amy Sedaris is a huge fan of David, so she decided to sing a medley for him during her appearance. Good times!

Finally, Ice Cube has a lot of feelings about twerking, and he's making them known on "Conan." That is all.