Add Jessica Biel to the ever-growing list of celebrities who have convinced themselves that they have what it takes to be the next Coco Chanel.The 26-year-old actress is designing a collection of handbags for boyfriend Justin Timberlake’s popular William Rast clothing line.

J.T. is adding an accessories line to his burgeoning fashion empire and has asked his GF to tap into her inner fashionista and work her magic on a set of limited-edition William Rast handbags.

According to Star Magazine, Jessica is busy sketching ideas for the purses and she’s already come up with several fab ideas which could soon make their big debut on a New York or L.A. runway.

“Jessica is casual when it comes to clothes, but she loves bags,” squeals one spy.