“Ur just a cute girl!” Kylie Jenner wrote. Bieber’s makeup artist, Morgane Martini added, “Hot Mama 🔥🔥🔥😘.” Camille Charriere gushed, “Mama is OUT🔥,” as Bieber’s stylist, Maeve Reilly wrote, “The glammmmm.”

Under only the rarest circumstances will the Rhode founder wear pants. Bottoms in a prototypical Hailey Bieber outfit often have "micro" as a prefix: micro shorts, micro-mini skirts, micro-mini dresses.

Paris is the place to return to for pastries and lovers—for Hailey Bieber, it’s to call back upon favored style codes. But for another evening in Paris, Bieber turned to Jacquemus for a full, monochromatic look that spoke to her core style sensibilities.