Paris Hilton and Lindsay Lohan are feuding again!
Paris arrived at a party thrown by jeweller Lia Sophia at the Polaroid Beach House, Malibu, and was furious to see that Lindsay was also there.
Lindsay was happily partying on Saturday with new love Harry Morton until Paris (along with her sister Nicky and Brandon Davis) arrived and reportedly began making nasty comments about her.
A source told America's New York Post newspaper:
"Paris was hanging out. She made it a point to whisper and laugh very loudly the entire time, snickering behind Lindsay's back." 
Lindsay was reportedly so upset by Paris' obvious attempts to intimidate her that she stormed out of the room and dragged Morton with her.
The source also added that Paris was walking past Lindsay a few hours later when one of Morton's friends pretended to kick Paris in the butt. He should have done it for real! I'm surprised that Paris thinks she can go to any party and not find someone who she has argued with!