Olivier Rousteing is a Somali-Ethiopian designer who served as Balmain's creative director for 14 years, stepping down in November 2025. At age 25, he became the youngest non-founding designer to lead a major Parisian fashion house since Yves Saint Laurent. Rousteing's tenure was marked by a pop culture aesthetic, diverse casting, and collaborations with celebrities like Beyoncé and Rihanna.