Angelina Jolie, Michelle Williams, Rihana, Rosie Huntington-Whiteley, Leighton Meester
Rihanna heated up the Grammys with her black backless gown. (Getty)
This week, fashion extremists hit the red carpet for the biggest night in music, starting things off with some dynamite looks (see: Rihanna's backless Armani gown).
Rosie Huntington-Whiteley, this year's queen of all things sexy, won over more fans in her angelic Antonio Berardi caped dress for the Elle Style Awards. Meanwhile, celebrities like Leighton Meester were at Fashion Week to show off their street style.
Michelle Williams fulfilled the fantasies of everyone's inner little girl in a princess-inspired Dior number and Angelina Jolie closed out the week in her custom rose-adorned Ralph & Russo design. Competition is stiff, but smart money is on Rihanna.
See Leighton Meester's lookbook: