Rachel Bilson hosted the E3 ‘Take No Prisoners Event’ in LA this week in honor of Father’s Day and took her dad as her date.

The star had time to pick out two Zac Posen looks from different seasons to create her winning look.

Her Zac Posen Resort 2010 top is the stand out piece with the striking floral print and cutouts.

I also love her Zac Posen Fall 2010 stone mini skirt with the structural detail.

Brian Atwood ‘Marlo’ pumps complete the look.

Credit: Style.com & INFEvents