It's no secret that former BFFs Paris Hilton and Kim Kardashian HATE each other.
The pair have barely mentioned their feud in public, though.
Paris was on the radio this morning with Chet Buchanan & The Morning Zoo on 98.5 in Las Vegas when she shared her thoughts on both Kim and Jessica Simpson.
What she said about Kardashian was not the nicest!
Check out the interview (below).