Fashion designer Hedi Slimane, who abruptly parted ways with Dior Homme in March after a seven-year stint at the helm, is staging a rock exhibit at Galerie Almine Rech in the Marais district through January. Entitled “Perfect Stranger,” it features Slimane’s shots of fans he made during the Benicassim rock festival in Spain last July. Sounds like the perfect sabbatical for the fashion guru.