Heavy traffic blocks a road as visitors try to get to a party honoring Rubi Ibarrafor her down-home 15th birthday near the village of Laguna Seca, San Luis Potosi State, Mexico, Monday Dec. 26, 2016. Rubi’s 15th birthday party resembled a rock concert on Monday after thousands of people showed up in response to an invitation by her father that went viral and made her the toast of the country.