On Tuesday, Swift shared a video of an olive branch and a note from Perry. The note is addressed "Hey Old Friend," and a closer look at the handwriting shows that Perry apologized to Swift.
"Hey old friend, I've been doing some reflecting on past miscommunications and the feelings between us, I really want to clear the air," the note reads.
"I'm deeply sorry for... " the note continues, before it's covered by the envelope. The envelope is adorably sealed with a sticker of a dog resembling Perry's beloved Nugget.
Swift was clearly pleased by the gesture.
"So, I just got back to my dressing room and found this actual olive branch," she says. "This means so much to me."
"Thank you Katy," the text on the video also reads, along with pink heart emojis.
Swift, 28, and Perry, 31, have not so subtly been feuding since 2014, when Swift told Rolling Stone in a revealing tell-all that she had a beef with a fellow pop star, which inspired her hit song, "Bad Blood."
"For years, I was never sure if we were friends or not," Swift said. "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?'"
"She did something so horrible," she continued. "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.”
Perry didn't shy away from Swift's magazine comments, tweeting the next day: "Watch out for the Regina George in sheep's clothing..."
In January 2015, Perry confirmed the tweet was pointed at Swift.
"If somebody is trying to defame my character, you're going to hear about it," Perry told Billboard magazine when directly asked if her tweet was about the "Shake It Off" singer.
After years of the two seemingly taking shots at one another -- like when Swift put her entire singing catalog on streaming services on June 8, 2017, the day when Perry's Witness album dropped -- the feud was recently revived by Perry in March, when she appeared to throw a little shade at the GRAMMY-winning singer. During a montage segment of American Idol hopefuls auditioning for the panel, Perry's fellow judge, Luke Bryan, asked one guitar-carrying singer who he looks up to as a musical artist. "I'm sorry for this, Katy… Taylor Swift," the hopeful answered nervously.
"Oh, you don't have to be sorry," Perry replied.
"I love Taylor Swift," the contestant added, emphatically.
"I love her, as a songwriter, as well," Perry stuttered, before shrugging indifferently.