Preheat a grill to medium-high heat.
Place the pizza dough on the grill. Let cook for 1 minute, and then flip with tongs. Move to a cooler spot on the grill (about medium heat). Brush with the olive oil and top with the corn, tomatoes and mozzarella. Cover the grill and cook until the cheese melts and the dough is crisp, about 4 minutes. Top with the scallions and basil.