Country music star Morgan Wallen met NASCAR icon Richard Petty, known as the King, at Nashville Superspeedway on June 1 during the sold-out Cracker Barrel 400. Wallen, who hails from Knoxville and owns a bar in Nashville, recently released a new album titled "I'm the Problem." Petty is mentioned in the lyrics of Wallen's song "I Ain't Comin' Back." Nashville Superspeedway has sold out four of its five NASCAR Cup Series races this year. Petty is a co-owner of Legacy Auto Club, which includes drivers Erik Jones and John Hunter Nemechek.