Kristin Nilsen has been a children’s librarian, a bookseller, a perfume seller, a horse poop shoveler, a typist (on an actual typewriter), a storyteller, a seventh grader, and a mom to both humans and dogs. Today she is a self-proclaimed Pro Crushologist who talks about Gen X pop culture on The Pop Culture Preservation Society podcast. She lives in Minneapolis, Minnesota, one of the only big cities in the world where you can look out your window and see a lake. Which she likes. A lot.

Rory Calhoun is a teen popstar with perfect teeth and messy hair who’s inspiring first crushes all over the globe. Millie Jackson is just one of the millions of fans who love him—but that doesn’t mean her heart doesn’t break for him every single day in this laugh-out-loud coming-of-age story.

How many of Rory’s fans collect “data” about him in a special notebook hidden in their underwear drawer? Or have faked a fascination with whale migration for a chance to visit his hometown? Millie may not be Rory’s only fan at Susan B. Anthony Middle School, but she’s convinced she’s the biggest—and the best.

Rory’s new song “Worldwide Crush” is climbing the charts, and his lyrics are clear: he’s looking for love—and he’s looking in the audience. Meaning Millie’s secret fantasies of running in the surf and eating waffles with him may not be crazy after all . . . she could be that girl! But first she has to get to his concert—his completely sold-out concert in a city nowhere near her home for which she does not have tickets or a ride. She just has to figure out how.