Ford models Chanel Iman and Amber Rose struck a pose last night at the dinner celebrating J Brand's denim collaboration with Hussein Chalayan.

Which model's personal style do you like more — Chanel's floppy hat and natural makeup or Amber's snug dress and glam lips?

Dial is making soap infused with synthesized pheromones called Dial for Men Magnetic Attraction Enhancing Body Wash. The soap is supposed to attract women. Apparently Dial does not make a version of this soap for ladies, possibly either because women don't need extra pheromones to get lucky or because they just don't give a crap about us. Anyway, scientists cannot determine whether these fake pheromones actually work. Real pheromones are still a bit of a mystery. But back to the soap: Dial did a test where blindfolded women smelled scent strips rubbed on men who had either just showered with a body wash containing the synthesized pheromones, showered with a pheromone-free body wash, or had just worked up a sweat and not bathed (yum!). The women were asked to decide, based on the scent strips, who they were attracted to. One woman chose a guy who had used Dial's magic soap. “In appearance and personality he was not someone I would otherwise be convinced to go out with,” she told the Times. Well yes, but she didn't get to look at him or talk to him — she just smelled a piece of paper that had been rubbed on him. Let's hear from an expert:

Why, of course Diesel has a billboard downtown portraying a pretty hipster taking his pants off for a grizzly bear, with the tagline, "Happiness comes from the inside. I'm working on it." Because if it were just a picture of a greasy, muscle-y model with unbuttoned jeans in a nondescript setting, that would inspire no one to go to Diesel and lay down $250 for pants that have received 40 extra lashings from a dirty garden shovel. Besides, hairy gorilla arms were all the rage on the fall 2009 runways. Diesel brings extra attention to this bear's gorilla arms by styling him with a shiny watch. So while this billboard may be many things — over-the-top, scary, inappropriate, grotesque — it is at least on trend.

New DIESEL billboard. Please interpret. [Copyranter]

Something fascinating occurred this week in the Universe of Diva Fashion. Rihanna, one of the Universe's top trendsetters, stepped out wearing hot-pink nipple pasties under a sheer black top. Only they weren't even nice nipple pasties like the silver stars she glued to her boobs on the Fourth of July, but just pieces of tape that made an "X" over each nipple — like cheap, recession-era DIY nipple pasties. Now, in April, Lady Gaga stepped out in a sheer black top with black tape concealing her nipples in much the same fashion. What is fascinating is not necessarily the pasties or style of the pasties, but that Rihanna did something Lady Gaga has already done. After all, before we had Gaga, Rihanna had solidified her place as a top trendsetter, and not only with her amazing, ever-changing hair dos. Maybe in the way that not wearing pants and looking generally beyond ridiculous is Lady Gaga's thing, Rihanna is trying to make nipple pasties her thing. But why? She already has so many signatures. Her hair, as we mentioned, her insanely fierce jewelry, her elaborate nails, her edgy taste in designers. She doesn't need to take cues from Gaga. The world only needs one Gaga, and Rihanna is fierce, fabulous, and worthy of obsession all on her own. But she does need some new bras or opaque shirts or some strategically placed Kermit the Frog dolls, dammit, because this nipple-pasty thing has got to stop. A little décolletage is one thing, but exposing the entirety of one's underboob — nay, boobs — is more vulgar than running around in only a leotard, blazer, and panty hose.

Singer Rihanna's revealing style strategy: Star-shaped pasties [NYDN]

Kate Moss, Erin Wasson, Elle Macpherson, and, most recently, Amber Valletta have all added "slash designer" to their job titles. Taking clothes designed by models seriously is hard enough for us, and we can barely stitch a button on a sweater. After blogging about fashion for long enough, we've learned to accept and sometimes (ironically) embrace their work. But Hussein Chalayan doesn't stare at fashion on the Internet all day, has created technologically magnificent dresses with LED laser lights, and once struggled for funding. So these model clothes don't amuse him in quite the same way. WWD reports:

“If you have a really strong sense of style and people want to aspire to being like you, I can understand that,” he says. “But if you really are doing it just because you think of yourself as a brand and you haven’t had the training and you know nothing about clothes, it kind of demeans all the training that designers have had.”

We wrote off charm bracelets sometime back in the nineties; the novelty of collecting a representative trinket for every occasion faded fast. We’ve since seen various incarnations of the personalized jewelry trend, from Carrie Bradshaw–spawned nameplate necklaces to Swarovski’s crystallized empire. But L.B. Valentine’s double-sided letter charms caught our eye with their tongue-in-cheek, mockingly cute images. "U" pairs a unicorn on one side with a pair of well-endowed tightie-whities; "J" depicts a jackpot and the ubiquitous jumpsuit; "T" shows a comely trapeze artist and target practice; and "M," fittingly, is for man and magnet (there’s something cheekily amusing about a having tiny male torso inscribed in fourteen-karat gold). Who says you have to stick to your own initials?

L.B. Valentine charms, $67 (sterling silver) or $496 (fourteen-karat gold) each at Auto or online.