I came up with this one night when we were grilling out. I was suppose to make a different kind of corn and couldn't find one of the ingredients at my house so I just went with this instead.
4 ears of corn
4 tbsp butter
2 tbsp fajita seasoning
Mix together the butter and the fajita seasoning. Spread all over each piece of corn. Wrap in foil and grill on the top wrack for 10 to 15 minutes or until the corn is done.