Morgan Wallen fans have "bad blood" with Taylor Swift.

Boos erupted from the crowd at Wallen's concert at Lucas Oil Stadium in Indianapolis, Indiana, Friday night after the controversial country singer made a joke involving Swift during the show.

In a video shared on TikTok and X, formerly Twitter, Wallen, 30, told concertgoers that they had set an attendance record for his two-night concert, which was part of his "One Night at a Time World Tour."

"They told me right before I walked on stage that this is the single most-attended concert in the history of this building," Wallen told fans, who cheered in celebration of the achievement. "And that we are the first people to do it two nights in a row."

The "Whiskey Glasses" singer went on to thank his fans before joking that he would boast about setting the attendance record until Swift "comes to town."

"I'm going to say that until Taylor Swift comes to town in the fall," the country singer added.

Some concertgoers could be heard loudly booing in response to the mention of Swift.

Wallen quickly stood up for Swift, telling the crowd, "We ain't got to boo, we ain't got to boo."

He then expressed his gratitude to fans for having his back before continuing with his show.

After videos of the moment hit social media, Wallen and his fans got flak from some users.

"Morgan Wallen needs to chill, [to be honest]. He shouldn't be making jokes about Taylor Swift. It's just not cool," one X user wrote. "He needs to learn some respect."

"Keep my wife's name out of your mouth," one Swiftie wrote on the platform.

Others, however, praised Wallen for coming to Swift's defense even against his fans.

"Love Morgan! He will always have a fan in me, but a lot of his fans are questionable lol I'm also a Swiftie!! Love to see my fave artists thriving and not downing each other!" one TikTok user commented.

"I'm a Morgan and TS fan. I love how he acknowledged she will beat his record and didn't allow the booing," a second person wrote.

A third fan added, "The way I couldn't love this man anymore!"

Some are even hoping for a potential collaboration between the two artists in the future.

"A Taylor and Morgan collab after this would probably be insane," one TikTok user wrote.

Wallen still has several months left to brag about his attendance record as Swift is not set to perform her three sold-out "Eras Tour" shows at the Lucas Oil Stadium until November.

The pop superstar is currently taking a two-month break from touring after wrapping up her six "Eras Tour" concerts in Singapore last month.

But this doesn't mean she's not keeping busy.

Swift is gearing up for the release of her 11th studio album, "The Tortured Poets Department," on April 19.

On Saturday, the "Cruel Summer" hitmaker took to Instagram Stories to mark 13 days before "TTPD's" release and to remind fans to preorder the album, according to People. Thirteen is Swift's lucky number.

Swift will resume her "Eras Tour" in Paris, France, in May.

Meanwhile, Wallen will bring his "One Night at a Time World Tour" to the Vaught-Hemingway Stadium in Oxford, Mississippi, on April 20. He is also set to headline the Stagecoach music festival in California at the end of April.

Check out Wallen's "One Night at a Time World Tour" schedule here.

Tags
Morgan Wallen, Taylor Swift