Gwen Stefani headed into a studio in Culver City donning an appropriate rock-and-roll look of white-trim cuffed A.L.C. trousers ($415) and a denim vest. We love how Gwen's denim topper and embellished mustard Christian Louboutin pumps added an unexpected edge to her business-like trousers, while her tortoiseshell shades and signature red lip upped the glam factor. A silver cuff, double-wrap necklace, and perfectly tousled top knot finished off her street style. Score Gwen's exact trousers to pair with a jean topper and yellow pumps for your next concert, or swap the vest and vibrant pumps for a crisp white button-down and red patent pumps for a lunch meeting.