Balmain creative director Olivier Rousteing knows how to throw a fashionable bash [1]. After debuting the French fashion house's Fall '16 collection [2] at Paris Fashion Week on March 3, the 30-year-old designer hosted the postshow party of all parties.

Olivier's Balmain Army [3] (including Latinas Joan Smalls [4], Alessandra Ambrosio [5], and Jessica Alba [6]) slipped into his stunning, new, straight-off-the-runway looks to attend the glamorous event. Want to see what went down? Keep reading for an insider's glimpse at all the postshow fun.

Jessica Alba

Joan Smalls

Alessandra Ambrosio

Joan Smalls With Jessica Alba and Derek Blasberg

Olivier Rousteing Kissing Alessandra Ambrosio

Joan Smalls With Derek Blasberg

Alessandra Ambrosio With Olivier Rousteing and Ana Beatriz Barros

Joan Smalls With Karlie Kloss