India, June 28 -- Taylor Swift delighted fans and NFL stars alike this week when she led an impromptu performance of her 2008 hit Love Story alongside her boyfriend and Kansas City Chiefs star Travis Kelce, as well as San Francisco 49ers tight end George Kittle. The trio performed during a lively bar party tied to Tight End University, according to a People report. On Friday, June 27, Kittle posted a now-viral Instagram video showing him and Swift belting out the lyrics to Love Story with unfiltered joy.

In the clip, filmed at a buzzing Nashville bar, Swift and Kittle enthusiastically sing, "Beggin' you, 'Please don't go." The singer-songwriter then jumps with excitement, hands raised, as the chorus kicks in.

Kittle then panned the came...