Taylor Swift Geeks Out on 'Ew!' Show

This "22" singer is 13 again! Turns out, Taylor Swift's alter ego also does not like breaking up or getting back together, but she'll dance to Selena Gomez.

Swift showed up on Wednesday's Tonight Show for Jimmy Fallon's Ew! show, where host Sara (no "h" because "h's" are Ew!) invited her mom's best friend's daughter Natalie (Swift) to come down to the basement.

PHOTOS: How Does Taylor Swift Always Look So Cool?!

The geek-chic gal shared with Sara (Fallon) that she collects band-aids, likes to eat apricots and for fun, builds Popsicle castles by herself. As for Natalie's favorite TV show, it isn't Pretty Little Liars. "My mom hasn't let me watch television since Miley Cyrus twerked," she admitted.

Swift, as Nat, isn't the only famous face to show up on Sarah's Ew! show. Pasts guests include Lindsay Lohan, Channing Tatum, Seth Rogen, Zac Efron and First Lady Michelle Obama.

Prior to her appearance on Ew!, Natalie posted a video message to Sara. "Hey Sara, it's Natalie. Remember me? Our moms were best friends in college," Natalie says. "I'm really excited because my mom said we are going to come visit you and your mom and your dad. I heard that you have that television show called Ew! Maybe I can be on it."

 Is Swift, a.k.a. Natalie, the best guest ever on Sara's (no "h") show?!