The Oklahoma State Cowboys logo is iconic, and the mascot has been a long-standing symbol of grit and Southwestern swagger. But few know that Pistol Pete is based on a real-life cowboy.

Linebacker DeMarvion Overshown will wear No. 0, the first player in Cowboys history to do so, the team announced Wednesday.

It had previously been worn in a variation by Cowboys mascot Rowdy, who wore "00." After news of Overshown's switch went public with an elaborate announcement and marketing campaign from the team ...