Cate's Cannes Do, Mariah’s Diva Don't: Best And Worst Wednesday

Cate Blanchett started off the Cannes Film Festival with a bang, showing up to her Robin Hood photo call on Wednesday in startling style.  The gorgeous blond looked angelic, in a super sophisticated skirt suit from the Armani Prive Spring 2010 Collection, which was hued in a demure pink.  She paired the lunar-inspired ensemble with pink heels from the same collection, which featured in asymmetrical, black ankle strap.  Also spotted at the fashionable festival was Kate Beckinsale, who rocked a plum and lavender Christian Dior ensemble.

Mariah Carey stepped out with her beloved hubby Nick Cannon, experiencing a major fashion flop!  The dynamite diva sported trendy Yves Saint Laurent platformed sandals with an ill-fitting, blue sweatsuit, resulting in a big DON’T!  For those of you at home, sweats + heels = fashion disaster.

Imogen Poots rocked a Chanel Spring 2010 dress to the NYC premiere of Solitary Man, while Kristen Wiig looked a bit wild in her Stella McCartney zebra mini at a special screening of the Rolling Stones’ Stones in Exile’ at the Museum of Modern Art.

What wild singer liked her rhinestone bra and panties set so much, she wanted the world to see it?  Check out the gallery in Style to find out.