Combine Franks RedHot Buffalo Wing Sauce and chicken; mix well to coat with sauce. To assemble one pizza: Spread 1/2 c. CATTLEMENS Barbecue Sauce over crust. Portion 1 cup Buffalo-Style Chicken mixture over sauce. Sprinkle 2 T. celery and 1 c. Mozzarella over chicken.
Bake in preheated conventional oven at 400F for 15 to 18 minutes. Remove from oven. Drizzle 1 cup dressing over pizza. Slice into wedges and serve immediately.