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Want to know which lipstick flatters your complexion? Or which shampoo smooths extra curly strands? Our annual list of Best Beauty Buys hit newsstands with our May issue, and now you can browse them all online in our new Best Beauty Buys database. In addition to the 150 expert-approved 2010 picks, you can shop, sort and try on winning products from the past six years. “The list is the culmination of months of interviews with hundreds of experts, so you can be sure that each and every foundation, lipstick, anti-ager, body lotion, shampoo, curling iron, hairspray, and toothpaste is the best in its class,” said InStyle Managing Editor Ariel Foxman.  “And even more exciting: InStyle readers get an exclusive 20% discount on the Editors’ Picks.” Click below to start browsing.
—Exclusive discounts on 2010 Editors’ Picks
—Try on the Best Overall Lipstick with our Hollywood Makeover Tool
—See the hottest picks from our international editors
—Print the 2010 Best Beauty Buys shopping list

Stars lit up the red carpet at the Metropolitan Museum of Art’s annual Costume Institute Gala last night, where some of the world’s most glamorous celebrated the opening of the museum’s latest style exhibit “American Woman: Fashioning a National Identity.” Stars like Jennifer Lopez, Blake Lively, Eva Longoria Parker and Kate Bosworth (and many, many more) proved there are no fashion rules at New York’s version of the Oscars! Click on to see all the red carpet photos from the Met Gala 2010.

While her fellow guests paraded past in Lanvin, Marchesa and Halston, Katy Perry brightened up the red carpet at the Costume Institute gala in an LED (light emitting diode) CuteCircuit gown she helped design. CuteCircuit’s Ryan Genz tells us that Katy and creative director Francesca Rosealla chose the fabrics, the cut, and even the design of the multi-colored lights, which Perry demonstrated using an on/off switch nestled in her cleavage. “Fashion can be a little stuffy, so I wanted to lighten up,” the singer said of her ensemble. If you’re lit up by the idea of wearable technology, you’re in luck: Later this month the company will launch a pret-a-porter line, including a minidress that displays a variety of colors and graphics cued by the wearer’s movements. Do you think Katy’s electric dress is a sign of what’s to come in fashion? Let us know your thoughts in the comments section!