This is why Taylor Swift can't have nice things.
The Grammy winner, who is on the American leg of her blockbuster Eras Tour, performed her Kanye West diss track "This Is Why We Can't Have Nice Things" for the first time since 2018 during her concert Saturday night.
Swift let out an epic cackle during the song — which which appeared on her "Reputation" album — when she played an acoustic rendition at Seattle's Lumen Field.
"And here's to you, 'cause forgiveness is a nice thing to do," she sang before bursting into fits of laughter, which she has always done while performing the song.
When she eventually composed herself, the pop star, 33, quipped, "I can't even say it with a straight face."
Fans were quick to react to the surprise performance of the track, which was released after her infamous feud with West, 46, and his then-wife, Kim Kardashian.
"I think when the laugh came out she wasn't expecting it 🤣🤣 had to take a second ti recover [sic]," one fan wrote.
"Not the little scream after the laugh 😂 I love her sm," another added.
A third fan joked that "the laugh was personal," while another said they were hoping she "saved this song for an LA performance" in case Kardashian, 42, attended with her daughter North West.
Swift's years-long feud with Kanye began at the 2009 VMAs when he interrupted her acceptance speech for Best Video by a Female Artist.
Although the pair seemingly made up in the following years, he went on to release a track titled "Famous" in 2016, claiming he got permission from Swift to call her "that bitch" in the lyrics.
The "Cruel Summer" chart-topper begged to differ, however, which led to Kardashian releasing a recording of the conversation and branding the singer a "snake."
"Wait it's legit National Snake Day?!?!?They have holidays for everybody, I mean everything these days!" the reality star tweeted at the time.
Swift later said that she dealt with the backlash — which occurred after Kardashian's video appeared to show her approving the rapper's lyrics — by writing new songs.
"A mass public shaming, with millions of people saying you are quote-unquote canceled, is a very isolating experience," she told Vogue in 2019.
"When you say someone is canceled, it's not a TV show. It's a human being. You're sending mass amounts of messaging to this person to either shut up, disappear, or it could also be perceived as, 'Kill yourself,'" she went on.
"I knew immediately I needed to make music about it because I knew it was the only way I could survive it. It was the only way I could preserve my mental health and also tell the story of what it's like to go through something so humiliating."
Along with "This is Why We Can't Have Nice Things," fans also believe "Look What You Made Me Do" was inspired by Kanye and Kardashian.