Nicole Richie was out and about in LA on Saturday, rocking a gold headband and ring from her House of Harlow collection. Her guest spot on Chuck airs tonight, and Buzz has a preview of what we can expect to see. Acting is just one of the many things Nicole has going on right now, and unfortunately she couldn't make it to DJ AM's performance with Jay-Z even though she and Joel accepted the invite. The couple probably had good reason, though if DJ AM wants to see his ex, he'll just have to tune in to her shower-fighting scene tonight like the rest of us.

To see more photos of Nicole in her teeny shorts, just