What once appeared to be a solid friendship between famous friends has devolved into a hodgepodge of alleged diss tracks, shady social media posts and interview clapbacks.
Here, we look back at the pop stars’ ups and downs over the years through their own words:
“Watching the Waking up in Vegas video. I love Katy Perry. I think I’m going to hang her poster on my wall now.”
— Swift, on Twitter in July 2009
“@taylorswift13 You’re as sweet as pie! Let’s write a song together about the subject we know best… for my new record. It’ll be brilliant”
— Perry, on Twitter in July 2009
@taylorswift13 You're as sweet as pie! Let's write a song together about the subject we know best… for my new record. It'll be brilliant~
— KATY PERRY (@katyperry) July 6, 2009
“@katyperry really puts the “fun” in Fundon.”
— Swift, on Twitter in August 2009
“LYLAS! C u @ the VMA’s bbgirl! (TS is an angel!)RT @taylorswift13:”
— Perry, on Twitter in August 2009
“@Katyperry knows how to throw a birthday party! I would even go as far as to say it was party-licious. Best EVER. Happy bday, pretty girl!!”
— Swift, on Twitter in October 2009
@Katyperry knows how to throw a birthday party! I would even go as far as to say it was party-licious. Best EVER. Happy bday, pretty girl!!
— Taylor Swift (@taylorswift13) October 25, 2009
“Sometimes, I really feel like I’m more of a Taylor Swift. She tells stories, and I think that’s why she resonates with a lot of people. She hits the hidden chord in them [where they say], ‘Oh my God, I’ve been through that too,’ or, ‘You said it in a way I could never explain.”
— Perry, to Nylon in March 2010
“Surprise guest at Staples Center: @katyperry!! We sang Hot N Cold and jumped up and down a lot. Katy! LA! I will always love you!”
— Swift, on Twitter in April 2010 following Perry’s guest appearance at her show
“OH MY GOSH. Is this kitty for real?!?! RT @taylorswift13: Hanging out with my new roommate, Meredith.”
— Perry, on Twitter in November 2011
— KATY PERRY (@katyperry) November 4, 2011
“@katyperry YES! And currently chasing her own tail. PS I miss you!”
— Swift, on Twitter in November 2011.
“One of the first times I went to the Grammys, I got to share a dressing room with Miley Cyrus and Taylor Swift, and I asked them for a lock of their hair from each one of them, which is totally creepy, but awesome. I put little bows on them individually and put them in my purse. And that was my little secret, and I’m a freak!”
— Perry, at an iHeartRadio listening party in October 2013
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The First Signs of Trouble:
“For years, I was never sure if we were friends or not. She would come up to me at awards shows and say something and walk away, and I would think, ‘Are we friends, or did she just give me the harshest insult of my life?’ [Then last year] She did something so horrible. I was like, ‘Oh, we’re just straight-up enemies.’ And it wasn’t even about a guy! It had to do with business. She basically tried to sabotage an entire arena tour. She tried to hire a bunch of people out from under me. And I’m surprisingly non-confrontational – you would not believe how much I hate conflict. So now I have to avoid her. It’s awkward, and I don’t like it…But I don’t think there would be any personal problem if she weren’t competitive.”
— Swift, discussing the unnamed inspiration for “Bad Blood,” to Rolling Stone in September 2014
“Watch out for the Regina George in sheep’s clothing…”
— Perry, in a September 2014 tweet posted shortly after the release of Swift’s Rolling Stone interview
Watch out for the Regina George in sheep's clothing…
— KATY PERRY (@katyperry) September 9, 2014
“If somebody is trying to defame my character, you’re going to hear about it.”
— Perry, responding to a question about her Regina George tweet, to Billboard in January 2015
“I’m not giving them anything to write about. I’m not walking up the street with boys, I’m not stumbling out of clubs drunk. But I’m never going to talk about her in my interview. It’s not going to happen.”
— Swift, to The Telegraph in March 2015
“Finding it ironic to parade the pit women against other women argument about as one unmeasurably capitalizes on the take down of a woman…”
— Perry, chiming in on Swift’s short-lived feud with Nicki Minaj on Twitter in July 2015
“You’re in a Rolling Stone interview, and the writer says, ‘Who is that song about? That sounds like a really intense moment from your life.’ And you sit there, and you know you’re on good terms with your ex-boyfriend, and you don’t want him – or his family – to think you’re firing shots at him. So you say, ‘That was about losing a friend.’ And that’s basically all you say. But then people cryptically tweet about what you meant. I never said anything that would point a finger in the specific direction of one specific person, and I can sleep at night knowing that. I knew the song would be assigned to a person, and the easiest mark was someone who I didn’t want to be labeled with this song. It was not a song about heartbreak. It was about the loss of friendship.”
— Swift, to GQ in October 2015
Open to Apologies:
“if she says sorry, sure!”
— Perry, responding to a fan who asked whether she would collaborate with Swift, on Twitter in September 2016
if she says sorry, sure!
— KATY PERRY (@katyperry) September 10, 2016
“There’s a situation. Honestly, it’s really like she started it, and it’s time for her to finish it… It’s about backing dancers, there were three backing dancers that went on tour with her tour. And they asked me before they went on tour, if they could go, and I was like, ‘Yeah, of course, I’m not on a record cycle and get the work and she’s great and all that. But I will be on record cycle in probably about a year. So, be sure to put a 30-day contingency in your contract, so you can get out if you want to join me when I say I’m going back on.’ So that year came up, and I text all of them because I’m very close with them, and I said, ‘Look, just fyi I’m about to start and I want to put the word out there.’ And they said, ‘Okay, we’re going to go talk to management about it.’ And they did, and they got fired. I And I tried to talk to her about it and she wouldn’t speak to me.
“I do the right thing any time that it feels like a fumble. It was a full shutdown and then she writes a song about me, and I’m like, ‘OK, cool, cool, cool, that’s how you want to deal with it? Karma!’ But what I want to say is that I’m ready for that BS to be done.”
— Perry, on The Late Late Show with James Corden in May 2017
“I wish that I could turn the other cheek every single time, but I’m also not a pushover, you know? Especially when someone tries to assassinate my character with little girls. That’s so messed up!”
— Perry, in an interview with NME, June 2017
An End in Sight?
“I am ready to let it go. I forgive her and I’m sorry for anything I ever did, and I hope the same from her … I love her, and I want the best for her. And I think she’s a fantastic songwriter.
“Maybe I don’t agree with everything she does and she doesn’t agree with everything I do, but I just really, truly want to come together in a place of love and forgiveness and understanding and compassion.”
— Perry, on The Thrive Global Podcast, in June 2017