G-Dragon fans, the wait is over. The 38-year-old's collaboration with McDonald's Singapore will be available starting Oct 1, the fast-food giant revealed today (Sept 24). The brand is bringing new Korean flavours including the Spicy Bulgogi Chicken Burger and Bulgogi Beef Burger. Of course, a K-pop collab isn't complete without exclusive photocards. Every Spicy Bulgogi Chicken Burger (Single and Double) meal comes with one mystery photocard, while stocks last. The photocard will come in a blind packet, and fans will pull either design one, design two or the secret rare edition. Merchandise in collaboration with the BigBang member's label…