Taylor Swift [1] made good on her preview of her character for Jimmy Fallon's Ew! skit [2] when she popped by the show Wednesday night. As Natalie, Swift is an endearing nerd with braces and glasses who's not allowed to watch TV because of a certain pop star. Meanwhile, Fallon is hysterical again as "Sara" (no h because h's are, you know), who stretches out her vowels like you wouldn't believe. Seriously, you have to hear Jimmy/Sara say "Pretty Little Liars [3]." Want to see the rest of the skits like this? Check out our roundup of the other celebrities on "Ew!" [4]