Friday night, Oklahoma debuted its newest tradition. After the third quarter against Temple, the lights went out and the fans sang along to “Courtesy of the Red, White and Blue” as a tribute to the late Toby Keith. OU announced the singalong tribute would take place throughout the season, starting with the opener against Temple. “Courtesy of the Red, White and Blue” was the first song up as the fans at Oklahoma Memorial Stadium turned on their flashlights and performed one of Keith’s biggest hits. CLICK HERE to go to PrizePicks and use code ON3 to receive a guaranteed $50 once you play $5 in l…