Katy Perry, in Elie Saab, arrives at The 54th Annual GRAMMY Awards at Staples Center on February 12, 2012 in Los Angeles, California. (Photo by Christopher Polk/WireImage)
Angelina Jolie wears and elegant Ralph & Russo dress at the premiere of the ‘In the Land of Blood and Honey’ on Feb. 16 in Paris.
Jennifer Aniston looks beautiful in a Tom Ford dress at the premiere of ‘Wanderlust’ on Feb. 16 in Westwood, Calif.
Taylor Momsen dons a lace Marchesa frock at the Fall 2012 Marchesa fashion show on Feb. 15 in NYC.
Jenna Dewan dons a pink Marchesa frock at the Fall 2012 Marchesa fashion show on Feb. 15 in NYC.
Taylor Swift, in Zuhair Murad, arrives at the 54th Annual GRAMMY Awards held at Staples Center on February 12, 2012 in Los Angeles, California. (Photo by Jason Merritt/Getty Images)
Rihanna in a custom Armani gown arrives at The 54th Annual GRAMMY Awards at Staples Center on February 12, 2012 in Los Angeles, California. (Photo by Christopher Polk/WireImage)
Christina Ricci opts for a plunging Thakoon dress at the ‘Bel Ami’ photocall on Feb. 17 in Berlin.
Michelle Williams dons a pink Christian Dior gown at the ‘My Week With Marilyn’ premiere in Paris.
Jessica Alba dons a teal and black Michael Kors frock at the Michael Kors Fashion Week show on Feb. 15 in NYC.
Whether the stars were hitting the red carpet at the Grammy Awards or sitting front row at Fashion Week, our favorite stylish stars proved that they know how to dress to impress! Who do YOU think was best dressed this week? VOTE!
Celebs went all out as they stylishly supported their favorite designers during Mercedes-Benz Fashion Week. We spotted everyone from Jessica Alba, (in Michael Kors), to Taylor Momsen, (in Marchesa), looking absolutely fabulous in their designer frocks! And who could possibly forget Rihanna‘s super sexy ensemble at the Grammy Awards? Check out the rest of the glamorous looks we were loving this week — who do YOU think was best dressed? VOTE!