In addition to endorsing her line of hair extensions at the 41st Cosmoprof Fair in Bologna, Paris Hilton proudly wore her name on her chest (in hot pink, no less) and casually sipped on her own canned prosecco. It's a rare day that Paris doesn't make her presence known, but now she's going to have to work overtime. Apparently Mischa Barton is about to join her as a fellow groupie girlfriend, following around her own boyfriend whose band Rooney is opening for Good Charlotte. Paris is already jealous about sharing the spotlight, but we think they should just open up some more prosecco and call a truce.