"Lively and smart, Blair Thornburgh's debut will hook you like a pop song and then proceed to win your heart." -- Nina LaCour, award-winning author of We Are Okay "Blair Thornburgh's debut is the perfect mix of music and heart, friendship and romance. Like a classic song, Who's That Girl will stick in your head long after turning the last page." -- Elizabeth Eulberg, author of Better Off Friends "I should write a love song about how much I adore Blair Thornburgh's fresh and funny debut. Charming, quirky, and full of heart." -- Sarah Mlynowski, New York Times bestselling author of I See London, I See France "Clever. A light, funny romance that offers a fair degree of satisfaction." -- Kirkus Reviews "Thornburgh thoughtfully charts the tensions and loyalties among a solid group of friends." -- Publishers Weekly "Thornburgh deftly balances snark and optimism in this thoroughly delightful [novel]. Readers will root for this intelligent heroine surrounded by terribly clever and articulate friends. The snappy dialogue, extremely likable characters, and daydream-worthy plot make this fun romance with Gilmore Girls-esque humor a perfect summer read." -- School Library Journal