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.

Gabrielle Union joined Jimmy Fallon on "The Tonight Show," and promptly got down to business singing the morning announcements to a fake high school. Two things: one, she's actually really good at singing. And two, Jimmy Fallon needs to grow himself an actual mustache immediately.

Over on "Late Night," Olivia Wilde took part in Seth Meyer's Actathalon, which basically consisted of her doing an obstacle course full of cliche acting moments. The best part? Her screaming "WHHHHHHHHYYYYYYYY" after finding out her pet fish died.
Over "Jimmy Kimmel Live," Kirsten Dunst chatted about "Fargo" — more specifically, how she had to gain weight for her role in the show. Turns out she ate "different cheeses and breads" to put on pounds. Living the dream, right?