I opened an early Christmas perfume gift to myself (it was an inexpensive add-on to get free shipping for another fragrance purchase), a very nice, sweet Floral in a wild-looking Barbie pink bottle called Paris Hilton Sheer (2007). This is the version I'd tried before that I liked, a follow-up to the original pheromone-infused Paris Hilton fragrance of 2004. Three years can make a huge difference in scent technology; while the main composition is essentially the same--a sweet, traditionally feminine white floral blended with apple notes, full-bodied and very American a la Gale Hayman Delicious and Fred Hayman 273, the Haymans being creators of Giorgio Beverly Hills, respectively, the Sheer version is definitely lighter, crisper, and noticeably ozonic (post Eternity airy-musky).
Although I'm afraid of the final dry down phase turning on me the way the original did, it's been well-behaved so far, with no animalic surprise elements to speak of. If you're interested in this fragrance, look for the word "Sheer" under Paris Hilton's name on the bottle and box. Otherwise, the packaging for both 2004 and 2007 versions is identical.