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.

Tina Fey is taking a stand against dresses! This comedy legend visited "The Late Show" and vowed never to wear a dress on a talk show again. Annnnd, then she stripped off her outfit and revealed a custom made set of Spanx that said "BYE DAVE." You're welcome, world.Jimmy Kimmel sounded off on Kylie Jenner's lips (she recently admitted to having fillers), and he didn't hold back. Zingers include: "I always thought her lips swelled up because she was allergic to something, like work" and "it's kinda like the Smurfs finally admitting to being blue."
'Jimmy Kimmel Live!': Kylie Jenner Lied About Her Lips
In the mood to watch Jane Fonda's disembodied head deliver facts on Uranus (among other subjects with Jimmy Fallon? Cool, us too. Watch this video to be vaguely creeped-out and more-that-vaguely amused.Guys, "The Tonight Show" is so jealous they didn't think of this game. Watch Helen Hunt and Nicholas Hoult (weirdest pairing ever) figure out whether they're looking at real Google auto-completes or fake ones made up by James Corden's hilarious writing team!Last but not least, Mad Men creator Matthew Weiner stopped by "Conan" and shut down a popular theory as to how the show ends: Don Draper will not be morphing into D.B. Cooper and jumping off a plane. However, he might be turning into a watermelon and hurling himself off a building. The more you know.