They first appeared on the red carpet together at the 2008 MTV Video Music Awards.
The pair immediately became fast friends, with Taylor tweeting about how much she loves "Waking Up in Vegas" and Katy even suggesting they write a duet together.
Katy Perry and Taylor Swift's feud has been well-documented for what seems like forever. Now, the raven-haired pop star is offering an olive branch to her rumored nemesis! Instead of going to the Grammys, she's planning a black-tie dinner for musicians called "An Evening to Celebrate the Creators," a few days before the awards show — and has invited the "Out of the Woods" singer to her bash.
“Artists are always looking for a way to connect with each other, but we don’t get that authentic connection because we’re either being pulled or pushed,” she told The New York Times.
“It’s just up to their schedules," she said.
We'll have to see what happens, but it's nice that they're not really at odds. Taylor even admitted that she hates when people say that "Bad Blood" is about Katy. They're both ready to be friendly again!
Click through the gallery to see a timeline of their friendship, and let us know if you think Taylor will accept the invite in the comments!