Love it or hate it?
Rachel Bilson showed off her petite figure in a bizarre bra cut-out Preen frock at the premiere of her new flick, Waiting for Forever, in NYC Thursday. (The actress, 28, also donned nude Brian Atwood pumps.)
VOTE: What do you think of these fashion faux pas?
The back of the cream colored gown featured a bright yellow neon stripe of fabric.
PHOTOS: Rachel at the premiere
Bilson -- who has been engaged to her Jumper costar Hayden Christensen, 28, since February 2009 -- recently admitted to Cleo magazine that she's obsessed with shopping.
PHOTOS: Stars' HUGE engagement rings
"I'm not a shopaholic in the sense that I spend lots of money; I definitely love vintage and I love finding deals just like anyone else. But I do like to shop!" she said.