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.

Billy Crystal kicked off the late night lineup with an appearance on "The Tonight Show," and naturally he and Jimmy Fallon did what they do best: lip flip. Turns out Billy is Jimmy's OG lip flipping partner, and this switcheroo was absolutely golden.
Billy and Jimmy also took a moment to remember their friend Robin Williams, and Jimmy shared a completely hilarious story about being on what basically amounts to a comedy party bus with the legendary actor.
Rose Byrne paid a visit to "The Tonight Show" to chat about how she's completely terrible at ice skating and had to use a body double in her new movie, "This Is Where I Leave You." Yep, she was out-staked by a couple of two-year-olds.
Over on "Late Night," Julianna Margulies chatted about partying with Christine Baranski, who apparently stayed up until three in the morning dancing like there was nobody watching at Seth's Emmy party!

Viggo Mortensen also hit up "Late Night" (pleasing hardcore "LOTR" fans while doing so), and chatted about his similarities to The Pope. Apparently, they have a lot in common when it comes to sports.
Over on "Jimmy Kimmel Live," Anthony Anderson and Kaley Cuoco-Sweeting played a fun game of "Name That Famous Celebrity." Let's just say these two are highly competitive.

Finally, Kaley sat down with Jimmy to talk about how she dealt with her leaked nude photos by using the "Nudifier" app! That's one way to get revenge.