Looking overwhelmed by the attention, yet resplendent in an elaborate fuchsia dress and gleaming tiara, Rubi Ibarra celebrated her 15th birthday on Monday on a ranch in central Mexico after the invitation to the event by her father went viral and made her the toast of the country. Family members had to open a path for the girl through dozens of reporters and photographers snapping her picture so she could reach the Mass for her in a field in the state of San Luis Potosi.