And unsurprisingly, she dissed Taylor just minutes after arriving on stage.
The "Swish Swish" singer pulled out a rack of clothes to change into and her selection features some definite shade.
"Should I wear a choker and some ripped jeans? Maybe some Yeezys?" She said.
As in Katy's joining forces with Tay's other enemy, Kanye West.
Now THAT is some tasty tea.
This article originally appeared on Girlfriend.