Mike Gundy has a fan in Justin Bieber. Bieber was recently on Radio Disney (that is such a thing) when his phone rang. Bieber's ringtone is a familiar voice screaming for your attention. Watch only about the first 20 seconds of the video below for the Gundy surprise. If you're a man, and 40, then watch the whole thing.

Enjoy the bonus rant from Gundy below.