For his Tom Ford debut, Haider Ackermann didn’t want only the garments to be sexy. He wanted the glam to match that, too.

Sometimes, even without a gleaming chainsaw taken to it, an industry will undergo a correction. Here, Paris Fashion Week's message on the future.

As the show flowed, Mr. Ackermann maintained the straight-backed architecture that makes Tom Ford suits a genuine benchmark for men, while redecorating the facade. Colors were bracing, and fits sat off the body just enough, while underpinnings aimed to startle traditionalists.

The Grammy-winning rapper has emerged as the biggest star of Paris Fashion Week, slaying looks from the front row to the stage.