Jackie and Adam Sandler. Shaunie and Shaquille O'Neal. Gwen Stefani and Gavin Rossdale. Heidi Klum and Seal. Jami Gertz and Tony Ressler. Janice and Billy Crystal. When these high-profile pairs have a star-studded soirÃÂ(c)e to host -- anything from a wedding to a bridal shower, a bar mitzvah to a birthday or business bash -- they all leave the preparations to one party planner: Mindy Weiss, owner of the Beverly Hills-based Mindy Weiss Party Consultants. But if you think her job is just about selecting flowers and ordering cakes, you're sorely mistaken.