Emma Rose is so not famous. So how did she score inside information on the most talked-about party of the year? Because Emma is secretly the hottest new fashion designer, Allegra Biscotti, and hired to whip up a Sweet Sixteen dress for the guest of honor. Wait: fashion emergency. How can she create a fiercely fashionable dress and keep her secret? There's only one solution: Emma must go undercover as her own intern. But when Emma feels the pressure by her BFF to explain how she got an invite from the in-crowd and an ultra-fabulous fashion internship, just when Jackson finally starts paying attention to her, she knows she has to make it work — or will it all come apart at the seams?