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.

Justin & Jimmy - together again! Justin Timberlake and Jimmy Fallon shared another sketch as kids at summer camp at Camp Winnipesaukee. This time it's 1997 and they sing "Jumper" from Third Eye Blind. They sang "Only Wanna Be With You" and "Africa" in previous camp videos. Best friends forever!

Justin wasn't even a guest on "The Tonight Show" on Tuesday. Instead, Nicki Minaj and Christoph Waltz were on the show. Nicki compared yearbook photos with Jimmy, and admitted - before she was a rapper - she used to be a bad office manager and she was a rude waitress in New York. She told the audience she probably served a lot of them at Red Lobster.

Anna Kendrick was on "The Late Show" with David Letterman, and she's always a great guest. They started to talk about what she wanted for Christmas, and she jumped in to reference a cat toy that had just been shown in the previous segment. "Can I say, that cat toy, that is a fur-covered dildo, no?" YES. Dave made a motion to close his own jaw. Dave said that never came to mind, but now that's all he can see. Someone brought one out, though, and Dave flashed it at Anna. "Merry Christmas!" Anna, who is part of the big "Into the Woods" cast, also shared her most recent Ambien experience. She takes a sleep aid when she has to go on long flights for movie promotion, then blacks out then wakes up with a surprise. Watch her funny story. Charli XCX was also on Letterman, and here she is with "Need Ur Luv." At the end of the performance, Dave got up on the piano with her and gave her the cat toy dildo. He said everyone would get one. Merry Christmas, everyone!

Garth Brooks was on "Jimmy Kimmel Live," chattin' about his wife, fellow country star Trisha Yearwood, plus his first album in 13 years and playing pro baseball. He said, on the tour bus, Trisha is one of the guys - even more than some of the other guys with them. Tracey Ullman was also on JKL and she talked about Meryl Streep, "Into the Woods" and why she stays away from social media.
And here are The Smashing Pumpkins performing "Being Beige":

James Corden is taking over the "Late Late Show" in March, and he said his first congratulatory e-mail was from Seth Meyers. James said he tends to get a tightness in his chest when he thinks about taking over the job. James was also in "Into the Woods" and he started a rumor on set that Meryl Streep had been fired. Christine Baranski really picked up the rumor and they sold it to Anna Kendrick. Vanessa Bayer was on Seth's show and Fred Armisen wasn't there, so she read off a note from him.

Dick Van Dyke - national treasure - was on "Conan" talking about how he used to be 6'2" tall and now he's about 5'11" since he's shrinking. Dick just turned 89, and he looks pretty darn good! Conan said he's in better shape than most people he knows in his 50s. Dick said you just have to keep moving. He's had a lot of successes in his career ("Mary Poppins," "Chitty Chitty Bang Bang," "The Dick Van Dyke Show," "Diagnosis Murder") but he's most linked to Mary Tyler Moore. Conan showed off an old photo of Dick and Mary doing some weird S&M. Dick said he didn't get what was happening at the photo shoot until Mary jumped on his back with a whip. (!) Here's Dick teaching Conan a soft-shoe routine. Legend! Cast Dick Van Dyke on "Dancing With the Stars" Season 20! Or, you know, cast Conan, since he's fun.

Larry King - dressed wonderfully - was on "The Late Late Show" and he read a farewell poem to Craig Ferguson, who is leaving very soon. (Sniff) It's actually a wonderful tribute.Angela Kinsey was also on Craig's show, and he patted her "lovely sexy couch" dress. They also talked about her stool, but not like that! She gets to keep Craig's foot stool. Her memento.