Toby Keith is so missed. An NBC tribute concert that aired this week, Toby Keith: American Icon, honored the star’s contributions to music and culture, with a number of big-name stars singing Keith’s hits for good causes. Next, he’ll be remembered by his home state of Oklahoma and one of his favorite football teams, the University of Oklahoma Sooners. How the OU Sooners Are Paying Tribute to Toby KeithKeith was a diehard Sooners fan, and he wasn’t shy about telling everyone — OU even gave him an honorary posthumous degree in April! Now, with the first college football season since the country …