The Fragrance Foundation recently invited industry experts NPD's Karen Grant, Elizabeth Arden's Ron Rolleston, Macy's Linda Levy, Parfums Christian Dior’s Terry Darland and Firmenich's Theo Spilka to throw a spotlight on the current state – and long-term viability – of celebrity scents, a $1.3 billion business. The net-net? In order to thrive, the star firmament needs to shrink.