"I'm doing a story on beauty," I tell a prospective interview. "By whose definition?" he snaps. Define beauty? One may as well dissect a soap bubble. We know it when we see it—or so we think.

According to some of Hilton's fans, a "definition of beauty" is her evolving style and the significance of the scent driving conversation about her. She has included a new scent, Icone Eau de Parfum, ...