 Delegates arrived in Los Angeles on March 8, 2007, and were involved in two weeks of rehearsals and events prior to the final show.The preliminary competition were held on March 19, 2007, where all 51 contestants competed in swimsuit and evening gown, with the personal interview competition being held in private the previous day.This was the first time in recent years that the presentation show was held in the hotel ballroom, rather than at the location of the final competition.