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.

Kicking off the late night roundup in the most literal sense ever is Will Arnett, who stopped by "The Tonight Show" for a festive game of Karate Piñata, aka "the time honored sport of kicking piñatas while blindfolded." Whoever breaks the most piñatas while kicking around like a ninja wins, and yes, slow motion is involved.

Of course, the real question on everyone's mind is whether or not Netflix is green-lighting a fifth season of "Arrested Development," and Will gave Jimmy exclusive confirmation that your favorite comedy will once again be available for binge-watching!

Everyone's favorite "Rubber Band Man," rapper T.I., also payed "The Tonight Show" a visit, only to start "beef" with Jimmy over a screw-top bottle of Rosé –– which Will Arnett claimed was a re-gift. Drama.

Over on "Jimmy Kimmel Live," living legend Mickey Rourke showed up to a) show off his amazing slicked-back hair, and b) explain the advantages of not having his two front teeth. If nothing else, watch this clip for Mickey's pinkie ring.

Megan Fox swung by "Conan" to chat about her love for spirituality and astrology. She even gave Coco a reading, and his results were somewhat unusual. Basically, Megan told Conan that his "emotions are heavily tied to uranus" and that his "uranus is full." Oh, and also his spirit animal is a llama.

Finally, on "Late Night with Seth Meyers," Michael Fassbender stopped in to talk about about the possibility of doing a musical with Steve McQueen. Please, Movie Overlords, let this happen!