21/03/2012 13:05 GMT | Updated 21/05/2012 10:12 BST

Hot or not: Mischa Barton mixes sheer silk with polka dot print

Mischa Barton made sure all eyes were on her as she took on hosting duties at the fashion brand Growze's Los Angeles store opening on Tuesday night (20 March) thanks to a sheer polka-dot shirt and excellent cheekbones - what?