sarah haines takes us insightde. >> a parade of princesses.his looks like something you'd see in disney world. >> reporter: they are the daughters of some of the most influential families in the world and they're here at the waldorf astoria making their high society debut. this is the international accident ewe debutante ball. the entrance fee $17,000. and of course you have to look the part. >> the designer of my dress, oscar de la renta. >> reporter: going to the balkan cost as much as -- ball can cost as much as a wedding. it used to be about finding suit fors and eventually husbands for society girls. with so many dating apps and social websites the role of the debutante ball has changed. >> it's no longer a marriage market the way it was. >> reporter: today it's more about being seen rubbing shoulders with the 1%. we followed three young women during their big night. sophia from austin. leah from new york. and britney from kansas city. the preparations began months beforehand. it's a few weeks before the big event and many of the ladies s