But wait! The source dished much, much more:
[Image via Splash News.]
SEX! Err, we mean, YES!
The Dark Horse singer was right up near the stage, and when Miley caught sight of Katy, she just had to get some suga!
So, the 21-year-old crawled to the edge of the stage, where Miz Perry met her, and they shared a moment… and some spit! Ha!
[Image and video via Tyler Rogers/Instagram.]