Taylor Swift, Jimmy Fallon, Ew!, Tonight Show, Ew
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.

Taylor Swift, who co-stars in "The Giver," stopped by "The Tonight Show" for a guest spot on recurring sketch "Ew!," portraying Natalie, a painfully shy 13-year-old apricot enthusiast with a Band-Aid collection and a passion for building popsicle stick castles. Host Jimmy Fallon's character, Sara, declares all of this "Ew," adding, "I so can't relate." When it seems the two will never bond, Sara starts a lightning round of items to declare "Ew" or not, including the concept of "getting back together." "Never," Natalie deapans, a perhaps not-so-coincidentally similar refrain to one of Swift's songs. "Ever, ever, ever, ever."

Swift later sat down to chat with Fallon about her inspiration behind the Natalie character, which sprung from a (literally) painful experience from her childhood. The singer admitted that she actually did build popsicle stick castles as a 10-year-old, and a "super aggressive" session with a hot glue gun left a prominent scar on her leg. "That is such a nerdy story," Fallon marveled.

Fallon also pressed Swift on whether or not she'd be performing at the MTV Video Music Awards on August 24, and the singer finally caved and confirmed that she would indeed (though she declined to say whether it would be a big number or an acoustic set). The host also wanted to know why Swift was hosting a live stream on Yahoo! on August 18, the subject of which Swift declined to reveal. That only made Fallon -- and his audience -- more curious, wondering if Swift would be releasing a new album. The songstress played it cool, hinting that there could be multiple announcements waiting for fans.

"Life After Beth" star Aubrey Plaza appeared on "Chelsea Lately" and discussed her dislike of laughter, leading the actress to tell a story about a time she laughed so hard she threw up. "Which I'd say is pretty cool," Plaza said with a smirk. The tale involved the actress's explanation that when she takes a drink, she has a compulsion to hold the liquid in her mouth momentarily before she swallows, which became a problem one day when she was eating out with friends and one of them made her laugh while she still had a carbonated beverage in her mouth. You can guess what happens next -- though it also involves a crowd of people and a public street.

Kumail Nanjiani stopped by "Conan" to promote his comedy show "The Meltdown," which he co-hosts with Jonah Ray, and his role on HBO series "Silicon Valley." Nanjiani explained to host Conan O'Brien that he had to warn his mother about one questionable scene from "Silicon," in which the company he works at hires a graphic designer to create a logo, and the man ends up drawing a giant piece of graffiti depicting Nanjiani, as he put it, "taking liberties with the Statue of Liberty." His mother was appalled. "We just got to this country," Nanjiani recalls the woman scolding him. "They're going to send us back."