Mix together frozen shrimp and spices. Set aside. Place a baking sheet into the oven. Heat the broiler on high, with the baking sheet in the oven, for 10 minutes.
Carefully remove pan from oven. Sprinkle shrimp onto the baking sheet, and spread into a single layer. The baking sheet may sizzle and steam when you place the shrimp onto the hot baking sheet.
Return baking sheet to oven, making sure it's about 6-8" from the broiler coils and broil for 5-6 minutes or until shrimp is opaque and pink and just begins to curve.
Remove from oven and place onto a serving plate. Using a pastry brush, spread melted butter onto the shrimp.