The pop superstar is on a brief break from her blockbuster The Eras Tour.
He was spotted in the VIP section during night two of his girlfriend's three-night run at Lucas Oil Stadium in Indianapolis.
Both Taylor and her mom attended the game at Arrowhead Stadium on Monday night (Nov. 4).
The star opted to wear an oversized Chiefs jacket for the game.
The Halloween episode of Live With Kelly & Mark airs on Thursday (Oct. 31).
Simpson was charged in June 1994 for murdering his ex-wife Nicole Brown and her friend Ron Goldman.
The couple, who have been dating since last summer, were seen in a suite enjoying beers and chatting with each other.
Travis Kelce celebrated his 35th birthday on Saturday, so a Chiefs win could turn into quite the birthday party in Kansas City.
Swift recently wrapped the European leg of her Eras tour.
The show is set to premiere on Prime Video beginning on Oct. 16.
