Sabrina Carpenter is in the running for song of the summer. Her stylist shares what it’s like to dress a pop star on the rise.

If it feels like Sabrina Carpenter is everywhere this summer, that’s because she is. Releasing back-to-back Billboard Hot 100 hits “Espresso” and “Please Please Please” just two months apart — and dethroning herself on the global Spotify songs chart in the process — Carpenter has established herself as a bona fide pop princess.But her catchy,…