MATERIAL GIRL: “It’s the coolest thing that’s ever happened, especially, since I am clearly not a model,” said Kelly Osbourne of her role as spokesperson of Madonna and daughter Lourdes’ Material Girl clothing line. Osbourne, 26, hosted an event Thursday night at the Macy’s Beverly Center in Los Angeles wearing a cropped denim shirt, mixed print tube dress and jewelry from the line. Around 150 fans showed up for the mini runway show and shopping party, along with a Q&A by Project Runway alum Nick Verreos. Osbourne shared how she got involved in the line (She met Lourdes at a Jay-Z concert), and her favorite piece (the denim shirt she wore). Osbourne, who has had brief stints as a singer, actress, designer, author and television personality spoke to WWD before the event about her ultimate Hollywood goal, acting. “I really enjoy the process of making movies, and I find it really fun to concentrate on one thing for such a short amount of time and then move on to the next. “ Osbourne just wrapped the film “So Undercover” with Miley Cyrus and Jeremy Piven, which hits theaters this October. Osbourne also appears on E! Network’s Fashion Police (“I enjoy working with Joan [Rivers] so much I don’t think I’ll ever leave “) and is about to start a jewelry line. “I am just getting it where I want it to be, but I’m not allowed to discuss it just yet,” she said.