Paris Hilton is engaged to her boyfriend of five months, Greek shipping heir Paris Latsis. Latsis, 27, proposed on Wednesday, the day Hilton, 24, returned home to Los Angeles after a three-week trip to Europe, where she promoted her thriller House of Wax and her new fragrance.

The couple celebrated yesterday with a barbecue for 75 friends and family at the Hollywood Hills home they share. No date has been set for the wedding. This will be the first marriage for both.