Since she played Summer Roberts on The O.C., we have adored Rachel Bilson's cute and casual style. Whether she is working the red carpet, bantering with Seth Cohen (thank you, SOAPnet, for re-runs), or dashing around town, Rachel looks effortlessly chic. She paired comfortable boyfriend jeans with brown leather accessories and a cozy navy sweater. This outfit is ideal for running errands (stars, they're just like us!) without looking sloppy. Princess Sparkle would be pleased.

Read on to see how you can get Rachel's look for less!