Article Photos: High school football: Norman North reaches 6A semifinals, trims Broken Arrow

Norman North Jazz Choir member Callie Cabbiness tries to stay warm before the group sings the National Anthem as her Timberwolves play Broken Arrow in class 6A football on Friday, Nov. 16, 2012 in Norman, Okla. Photo by Steve Sisney, The Oklahoman

Norman North Jazz Choir member Callie Cabbiness tries to stay warm before the group sings the National Anthem as her Timberwolves play Broken Arrow in class 6A football on Friday, Nov. 16, 2012 in Norman, Okla. Photo by Steve Sisney, The Oklahoman