On the red carpet: Rianna, Kim Kardashian, Lea Seydoux, Gwen Stefani

Rihanna’s Giambattista Valli Couture dress is like a spool of candy floss at Disney Land: unstable, sweet and big beyond all sense. 

She changed into a muted Margiela suit for her Grammys performance. Good for her, putting on a show inside and outside.