cecelia vega reports. reporter: there is no crown, the winner calls herself the prettiest of the bunch. the losers, well this is what they get a big red x right over their faces. the girls are so young we can t show you those faces. but here s how it works. they post their photos on social media, instagram, just about anyone, strangers, can vote, choosing the cutest of the group. this cyber-pageant with the mean girl twist is all the rage. so why would a girl willingly subject herself to this? every girl wants to know what other people think of her. girls perceive that social media will be this solution to that anxiety. there is no app, there is no software that is going to take away the anxiety. that s part of growing up. reporter: in a statement, instagram said parents should monitor their kids on line. and we continue to invest heavily in providing tools so that we can review it and take
reporter: there is no crown, the winner calls herself the prettiest of the bunch. the losers, well this is what they get a big red x right over their faces. the girls are so young we can t show you those faces. but here s how it works. they post their photos on social media, instagram, just about anyone, strangers, can vote, choosing the cutest of the group. this cyber-pageant with the mean girl twist is all the rage. so why would a girl willingly subject herself to this? every girl wants to know what other people think of her. girls perceive that social media will be this solution to that anxiety. there is no app, there is no software that is going to take away the anxiety. that s part of growing up. reporter: in a statement, instagram said parents should monitor their kids on line.