Here is the pizza list from the menu of my local pizza place. (I think if you click on the image you will get a larger version.)
There isn't a single mention of corn, but please believe me every darn one has corn except (so far) the mixed fruit pizza and the durian pizza (not that I've eaten either, but I have seen them.)
They will hold the corn if you ask (and they remember to tell the people who assemble the things).
Note: "Hot" here means 'popular', not 'spicy.