Fashionable Friends & Gossip-Worthy Flops: Best And Worst Wednesday

Jennifer Aniston not only smells good, she looks good too.  The former Friend jetted over to London, where she launched her new fragrance, Lolavie, at Harrods.  The flawlessly figured star wore a teeny-tiny Valentino mini from the Pre-Fall 2010 collection, elongating her legs in super strappy Azzedine Alaia sandals.  The result?  The absolute Best Look of the Day!

Taylor Momsen is definitely Gossip-worthy, but the underage star could take a few pointers from Jen on how to look sexy-classy instead of sexy-trashy. The not-so-sweet sixteen star performed with her band The Pretty Reckless, wearing a grommet embellished shirt (as a dress), which was attached by matching garters to thigh-high tights.  Made up with raccoon eyes, which were so dark, it almost looked like she was wearing shades, Taylor’s look resulted in our least fave of the day.

At the Season 4 premiere of Mad Men, Elisabeth Moss dominated the red carpet, and we were green with envy.  Decked out in an emerald taffeta Oscar de la Renta one-shouldered frock and tan Christian Louboutins, the classy actress had us panting for air. Her costar, the curvy Christina Hendricks, missed the mark in Dolce & Gabbana, wearing a high-necked lace mini with closed-toe heels.

Selena Gomez was busy promoting Ramona and Beezus in NYC, scoring not one, but two Best Dressed nods, while Kelly Osbourne slipped up with ankle socks in Los Angeles.

What hip-hop sensation channeled The Situation, while onstage in Switzerland?  Check out the gallery in Style to find out.