Nicole Richie tights gym Studio City

With two young children you'd think she'd be a pro at this, but we were able to identify the former party princess within a matter of seconds!

Nicole Richie made her daily trek to the gym yesterday, and she hid her makeup-free face behind a giant Chanel bag and a fancy scarf. No matter what, she's gotta stay on her toes when it comes to style! And speaking of that, Macy's just posted this photo of the flighty fashionista in the ad campaign for her upcoming Macy's Impulse collection, which debuts this September: