Celebs and their fragrances

So I am assuming that in order to "arrive" in Hollywood these days, you must have your own perfume on the market. On a recent buying trip to vegas, my sis and I were perusing our fashion mags in flight (back to front as always, avoid the ads and get to the meat) and we came across a perfume review. Seven of the Eighteen scents were by celebrities and it got us wondering, "How do I feel about smelling like Celine Dion or Kim Kardashian?" She is totally opposed to the whole idea so it made me wonder if I was too. I have decided to embark on a little experiment to see if any of them are worth it or if it is just one more way for them to exploit their fame for cash. I am completely obsessed with perfume and all things that smell good and I am very big on having my own signature scent (although a certain sales girl at Diva has been donning my Dolce and Gabanna Light Blue and I am not sure if the shop is big enough for both of us to smell that good) so I am on the hunt for a new smell. On that same trip to Vegas while drunk shopping at Barney's, I came across an interesting concoction by Commes de Garcon. Loved it drunk, hated it sober. Note to self; be sure to TRY ON the fragrance, do not buy it from the little paper strip test!
So I am going to give the celeb labels a try (fingers crossed) and was wondering if anyone has a to die for bottle that I absolutely must have?