Joel Ryan, Pool / AP PhotoMichelle Obama G-20 FashionFrom her ever-present cardigans to the pointiest stilettos, Michelle Obama’s wardrobe at G-20 has the world watching. VIEW OUR GALLERY of the first lady’s fashions.04.02.09 10:18 AM ETJoel Ryan, Pool / AP PhotoJoel Ryan, Pool / AP PhotoWEARING THE BLUESAt a visit to a school in London, Michelle Obama dazzled in a Jason Wu cocktail dress with an argyle cardigan by Junya Watanabe. Her double strand of pearls offered a more traditional, sophisticated spin on the otherwise funky look.Steve Parsons, PA Wire / AP PhotoSTILL DARING TO BE BAREFollowing a dinner at Downing Street, Michelle manages to look understated and elegant while still showing off her famously toned arms in a satin Isabel Toledo tuxedo tank dress, low black heels, and her ubiquitous pearls.John Stillwell, Pool / AP PhotoPRIM AND PROPERMichelle tossed a black Azzedine Alaïa cardigan over her sleeveless Isabel Toledo dress for her first meeting with Queen Elizabeth II.Leon Neal, WPA Pool / AP PhotoTHE PRICE IS RIGHTMichelle donned a $298 bead and rhinestone J. Crew cardigan and $158 mint green gingham pencil skirt on her way to Maggie’s Cancer Caring Centre, rendering the style of the prime minister’s wife, Sarah Brown, dull by comparison.Pablo Martinez Monsivais / AP Photo FLYING HIGHMichelle didn’t appear the slightest bit rumpled from her plane ride to Essex and emerged glowing in a chartreuse dress designed by Jason Wu. Her black sweater jacket was cinched with her favorite studded Azzedine Alaïa belt.Mark Wilson / Getty ImagesBON VOYAGEThe first lady left the White House earlier this week in a black shift dress by Michael Kors and covered up in a tulle tweed coat with grosgrain ribbon designed especially for her by Thakoon Panichgul.