This week was all about...presumptuous shapes, perfect fit. And the winners are...

Shenae Grimes in a black and cream, striped Sass & Bide dress at the "Whip It" premiere in Los Angeles. This one reminds me of the similarly-striped Louis Vuitton dress worn by Leighton Meester to this year's Teen Choice Awards.

Kerry Washington in a silk, Zuhair Murad Fall 2009 Couture dress belted at the waist at the 57th San Sebastian Film Festival Closing Ceremony. I can't decide which detailing I value more--that of her ruched blouse or her printed skirt.

Victoria Beckham in a black, William Tempest dress at the launch of David Beckham’s new Adidas clothing line, the Beckham by J. Bond Collection. So Posh, so sexy.

Olivia Wilde in a grey Helmut Lang sheath worn during a visit to the "Late Show With David Letterman." Olivia's cropped, asymmetrical leather jacket adds an edgy touch to this otherwise conservative look.

Keri Hilson in a bright red, bell-shaped strapless dress by D&G at the 2009 MOBO Awards. She ups the ante with super-sparkly heels.

Photos (left to right): Alberto E. Rodriguez/Getty Images; Carlos Alvarez/Getty Images; Jon Kopaloff/FilmMagic; Jeffrey Ufberg/WireImage; Gareth Cattermole/Getty Images