Esquire House Grand Opening & Spike TV’s 2010 Scream Awards – Kate Bosworth In Derek Lam & No. 21

Kate Bosworth attended the grand opening of Esquire House LA hosted by Sienna Miller in LA this weekend.

The actress kept her look simple yet chic wearing a Derek Lam Spring 2011 look.

This look included a black top with a printed insert which was paired with a Raffia skirt.

Side swept hair, bold red lips and Sergio Rossi black suede heels completed the look.

Kate had a busy weekend because she also attended Spike TV’s Scream 2010 Awards to support her boyfriend, ‘True Blood’ actor Alexander Skarsgard.

She was spotted backstage wearing a No. 21 Fall 2010 dress.

I love her chiffon lilac frock with a ruffled detail and her casually tousled hairstyle.

I’m not at all impressed with her Nicholas Kirkwood pumps, but then I hardly am impressed with pumps on the red carpet these days.

Credit: Style.com, AP & Getty