WATCH: Taylor Swift Shares Viral Moment With Brittany Mahomes

A viral clip shared online showed Taylor Swift hugging Brittany Mahomes, the wife of Kansas City Chiefs quarterback Patrick Mahomes, in celebration of Travis Kelce's big first down reception during the live 'Thursday Night Football' broadcast of the team's 19-8 win against the AFC West Division rival Denver Broncos.

Mahomes connected with Kelce on a 19-yard first down reception, which set up an eventual touchdown pass to Kadarius Toney three plays later to extend Kansas City's lead to 10-0 late in the second quarter. The All-Pro tight end recorded seven receptions for 109 yards before halftime and finished with nine catches for 124 yards, despite playing through an ankle sprain.

Swift and Brittany Mahomes were shown excitedly celebrating immediately after the catch on Amazon Prime's live broadcast. The singer had previously attended the Chiefs' game against the Chicago Bears at Arrowhead Stadium on September 24 and road game against the New York Jets at MetLife Stadium on October 1, but was absent from Sunday's (October 8) game against the Minnesota Vikings at U.S. Bank Stadium.

The All-Pro tight end experienced a non-contact injury in the second quarter of Sunday's game, but returned soon after, recording a decisive 4-yard touchdown reception in the third quarter, finishing the game with 10 receptions for 67 yards and one touchdown. Kelce had previously missed the Chiefs' season-opener due to a bone bruise, which resulted in the Kansas City's only loss through its first five games of the 2023 NFL season.

Kelce reportedly believes Swift is the Chiefs' "good luck charm" amid their new relationship.

“He jokes she is his good luck charm,” a source The Messenger on Sunday (October 8) after Swift was absent from the Chiefs' win against the Minnesota Vikings at U.S. Bank Stadium.

Last Monday (October 2), an insider with knowledge of the situation told PEOPLE.com that Kelce is reportedly "focusing on football like he always has" amid his new relationship with Swift.

"During the NFL season, his priority is the Chiefs, and it’s all about the team," the source said.

Kelce and Swift are reportedly "still just getting to know each other" and haven't yet defined their relationship, according to the source who added, "it's nothing too serious."

"He is a charming guy. It’s more of a hanging out situation than dating," the source said.

Kelce broke his silence on his relationship with Swift during the September 27 episode of his New Heights podcast after the singer attended the Chiefs' game at Arrowhead Stadium.

Last month, TMZ reported that Swift and Kelce hung out "several times" in a "very private setting" prior to the singer attending Chiefs' game at Arrowhead Stadium.