Thank you to Karen for finding this article in the New York Post (sorry, link has expired), which reports some interesting sales figures for celebrity fragrances:
Last year, celebrity fragrance brands generated $94.9 million in sales, up from $45.3 million in 2000, reports the NPD Group.
Britney Spears' Curious was the No. 1-selling launch fragrance in 2004, reportedly raking in more than $36 million in its first four months of counter sales alone.
Jennifer Lopez's three fragrances have grossed more than $250 million globally since the first in the line launched three years ago.