Jenni Carlson
9/19/2017, 04:24 PM
Undefeated Oklahoma went 4-5 after Katy Perry asked Trevor Knight to call her on ESPN's College GameDay.
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More... (http://collegefootballtalk.nbcsports.com/2017/09/19/baker-mayfield-what-derailed-sooners-2014-season-i-blame-katy-perry/?ocid=Yahoo&partner=ya5nbcs&yptr=yahoo?src=rss)