When Gwen Stefani showed off the Fall 2011 collection for her edgy, urban clothing line, 'L.A.M.B.,' she gave spectators an extra little treat. At the end of the show, Ms. Stefani hit the stage for the applaud-the-designer section with her oldest son, Kingston Rossdale, in tow. The adorable 4-year-old was punked out in his mama's brand, wearing plaid and green pants, a black hooded sweatshirt, black boots and a blond on black rocker hairdo. Stefani was looking radiant as usual, wearing a flowing chiffon, leopard print dress.

In these pictures from Gwen Stefani and Kingston's runway walk, it is obvious that Stefani is beaming not only because of her successful collection, but also because she was able to celebrate this moment with her adorable son. Check them out and let us know which picture you think captures the cutest mother-son moment.