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.

Jake Gyllenhaal visited "The Tonight Show" and promptly started throwing glasses of water all over Jimmy Fallon in an epic game of Water War. Basically, they played the card game War and hurled water at each other, and it was completely amazing. Spoiler alert: the winner got to use a giant squirt gun on the loser!

Pee-wee Herman (aka Paul Reubens) was also in the house on "The Tonight Show," and he did Jimmy a solid by re-voicing "The Avengers: Age of Ultron" trailer. We challenge you to get through this without laughing.

Lisa Kudrow is currently starring on HBO's "The Comeback," but let's be real –– people will always love her most for her role on Friends. Except for her son, that is, who (as Lisa told Jimmy Kimmel) apparently doesn't have any interest in the show. Uhm, but what about Ross and Rachel?! Blasphemy.

Everyone's favorite pet detective Jim Carrey rolled by "Late Show with David Letterman," but unfortunately he got stuck in a claw machine in an attempt to retrieve an Academy Award. Understandable.

Jim also busted out his Matthew McConaughey impression, which might be the best one of all time. The highlight? Watching "Matthew" roll his boogers.

Finally, Katharine McPhee visited "Conan" to chat about how she's totally anti dressing up super-sexy for Halloween. You can guess how Conan felt about that....