Lady Gaga sung the National Anthem in a sparkling suit at the Super Bowl.
The actress wears a sunny Narciso Rodriguez gown in California.
Vote for the best dressed star of the week here.
The actress wore Monse on the red carpet.
The actress wore a shimmering Saint Laurent dress to the "How to Be Single" premiere.
The actress wore a shimmering dress on the red carpet.
The model and actress wore a sheer Reem Acra gown to the "Pride and Prejudice and Zombies" premiere.
The actress wore Roberto Cavalli to the Sidaction Gala in Paris, France.
The pair wore all the trends to Milk Studios' beauty line launch party.
Who looked good and who looked better? The Maras, for starters.
The actress wore Marc by Marc Jacobs for a night out with her husband.
The actress wore Stella McCartney to the "American Crime Story" premiere.
The model (and actress) showed off her new look—and dog—front row at the Chanel couture show.
At the couture shows in Paris.
At the Sundance Film Festival.