Selena Gomez hair picture from youtube video????

hey im getting my haircut on thursday and i know exactly how i want it. for those of you who know, its from that youtube video of selena gomez and demi lovato called "update", thats the same vid that miley and mandy made a parody of. but yeah so i like fell in love with selenas hair in that vid, any idea how i could get a pic from the vid?? a link would be really helpful!!! thanks!