KANSAS CITY, Mo. — Southern hip-hop star Big Boi, formerly of the duo Outkast, performed a medley of his hits during the halftime break at Arrowhead during the Chiefs Divisional Round game.

To mark the occasion, six-time Grammy-winning hip-hop artist Big Boi will take the stage for a special live performance on March 8, following two days of high-stakes competition at Buttermilk Mountain ...