Renee Zellweger turned it out in another fab get-up sporting an electric blue structured, strapless Carolina Herrera mini-dress with silver pumps and so-messy-it's-sexy hair for her appearance on the Late Show With David Letterman.
MTV hostess of the hip-factor mostest, Alexa Chung funked out a simple red Calvin Klein dress with a standout necklace and black ankle booties while hitting up the I 'Heart' Ronson Collection launch in NYC.
And don't miss Kimberly Stewart and Taylor Swift turning heads in statement numbers in the U.K.
All of this and more hit our Style Radar.
In Today's Gallery: Alexa Chung, cate Blanchet, Renee Zellweger, Kimberly Stewart, Taylor Swift, Ashlee Simpson, Shenae Grimes, Lindsay Lohan, Alexis Bledel.