From Wiki Pedia
Popular gameday traditions: Fans screaming all game (
Arrowhead Stadium has been rated as the loudest stadium in the NFL) - occasional use of "War Chant" popularized by the
Florida State Seminoles - popular mascot "KC Wolf" - Raider Hater Week (parts of town painted red to celebrate the oldest AFC rivalry) - at the end of the national anthem, the fans sing "and the home of the CHIEFS!"