It’s called Michigan State’s “hoot and holler drill” and lives up to the name. There are three offensive linemen and three defensive linemen, along with a quarterback and a running back. Surrounded by their teammates on the Spartan logo at midfield, they put a hat on a hat and see which side wins – basically, a version of the Oklahoma Drill. The result is a celebratory mob from either the offense or the defense, and then they do it all over again.
Source: MLive.com