Poor, poor Kourt.
The source says of Disick:
Katy went country crazy at the CMT Crossroads concert on Friday, and we know that her and Katy totally brought down the house, hopefully with a hoedown or two!
The concert took place at Sony Pictures Studios, and will air on CMT June 13th!
We can't wait to see this concert then, and we're green as Katy's hair with envy that we didn't get to see it live!
[Image via Getty Images.]