Jimmie Johnson, Tonight Show, Jimmy FallonIf 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.

"Tonight Show" host Jimmy Fallon opened up his suggestion box to find a query from a fan asking him to challenge someone to a race using a beer cooler scooter -- literally, a motorized scooter built from a cooler. Fallon brought in Sprint Cup champion Jimmie Johnson for the bit, and offered him a beer helmet for protection, though Johnson was eager to get the race over with. "I just can't wait to ... see what's inside the cooler," he told Fallon.

Another suggestion box question from a college freshman sought advice for school, which Fallon said he didn't feel qualified giving. Instead, he called upon "Parks and Recreation" star Nick Offerman, who offered up his best Ron Swanson-style steely gaze as he advised the young man, "If you find one of your roommate's pubes on your bar of soap, save it." Offerman's reasoning behind that quir bit of wisdom was a bit wacky, though based on the staredown he gave the camera -- and a call out of someone named Derek -- the actor was speaking from painful experience.

Fallon also debuted a new game, Pool Bowling, which he played with guest Hugh Jackman. What seemed like a fun idea in theory -- use bowling balls painted like pool balls to play a round on a giant pool table -- actually didn't work out so well, mostly because neither Fallon nor Jackman was particular good at it. As the game stretched on without either one sinking a shot, Fallon joked, "Welcome back to the eighth hour of 'The Tonight Show,'" while Jackman eventually surrendered and went to lie down on the couch.

Jackman stuck around to chat with Fallon about singing for Joan Rivers's funeral earlier this week, explaining that the late comedienne had had the event planned out for years and had personally asked him to sing a song from his Tony-winning role in "The Boy From Oz." "She was an amazing woman, and it was an appropriate send-off and I felt honored to be part of it," Jackman said of the service.

Over on "Jimmy Kimmel Live," another segment of Lie Witness News found fashionistas at New York Fashion Week lying about the latest designers and trends that they claimed to love, but were actually made up by Kimmel's crew. Unsuspecting idiots raved about the work of such fashion luminaries as Chandler Bing (a hit on social media, according to one interviewee), Teddy Ruxpin, Supreme Court justice Antonin Scalia (his robes are very in style), and Phil Robertson. "One of my favorite designers," one person gushed over the "Duck Dynasty" star.

NASCAR star Dale Earnhardt Jr. stopped by "Kimmel" and chatted about the recent changes in the sport, including the creation of The Chase, the rules of which he tried to explain to Kimmel with middling success. Earnhardt also talked about the full-scale Old West-style town he had built on his property, complete with a saloon and a jail -- the former which he uses for partying with friends, the latter for when said friends get a little too rowdy and need to sleep off their drunkenness.

Seth Green stopped by "Conan" to defend himself after footage of him from his last visit to the show seemed to reveal that he had picked his nose and eaten what he found, to the disgust of most of the internet. Green claimed that what people saw as the incriminating act was instead just a series of unfortunately-timed nervous bodily tics -- which host Conan O'Brien helpfully replayed in slow motion, complete with giant arrows -- though he admitted the evidence was stacked against him. "Me showing this is proving I'm guilty," the actor lamented.

On "The Late Show," Dr. Phil McGraw sat down with host David Letterman, where the two sixty-somethings talked about their advanced age and how it's changed their priorities. "When you get [this old], you kind of get where, 'F--k it,'" McGraw said, to the delight of the crowd. Except, of course, the lone priest among them, who the camera cut to at that exact moment.

"Scorpion" star (and "American Idol" alum) Katharine McPhee chatted with Letterman about her new CBS show, and the real-life inspiration behind it. Letterman wondered if the computer-savvy "Scorpion" crew could help track down the hackers who recently released a trove of celebrity nude photos, an idea that McPhee endorsed.

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