After clubbing into the early hours of the morning Sunday morning, the party-goers returned to Stavros' suite where they started a pillow fight, then a guest reported threw at table at the ceiling and broke a sprinkler head. Water rained down into four rooms and the fire alarms were set off, causing the entire hotel to be evacuated. One guest said: "The carpet was coated with pillow feathers. Every lamp was broken."
Paris, who was reportedly upstairs in Kelly's suite when the fight broke out, came down and said to Kelly: "I don't want them (the Hard Rock) to think I bring in people who do this stuff."
According to witnesses, Stavros came out of the room with his hair covered in white feathers and was overheard calling his father to get permission to charge $100,000 to his credit card to cover the damage and fines. The Niarchos family is worth about $7.5 billion.
It's been a wild week for the handsome 20-year-old Greek billionaire who was in the news a few days ago after he left a nightclub drunk and drove Paris' $170,000 Bentley into the back of a parked truck - while blindfolded - damaging the car. Then on Friday, he was driving her Range Rover through Laurel Canyon near LA when he hit a big pothole and had a blowout.