Rod Stewart's son SEAN has pleaded not guilty to assault with a deadly weapon and vandalism charges following an April (07) incident in which he is accused of attacking two people sitting in a car. The 26-year-old star of U.S. reality TV show Sons Of Hollywood entered his plea during a brief hearing at Los Angeles Superior Court on Tuesday (03Jul07). Stewart stands accused of throwing rocks and trash at guests as they left a Hollywood Hills party he and his friends were allegedly denied entry to. He remains free on $60,000 (GBP30,000) bail and is next due in court on 6 August (07). Stewart has previously been in trouble with the law for drug and assault charges, resulting in a three-month stint in jail in 2002.