This bride cried in shock when she saw an unexpected wedding guest on her big day! Christopher surprised his bride Danielle, by bringing their dog, Gia, to the ceremony. When Christopher and Danielle walked out of the building, the bride had no idea she was about to get the surprise of the day! Gia took everyone's breath away and nearly upstaged the bride! It was all the groom's idea! InsideEdition.com's Keleigh Nealon (http://twitter.com/KeleighNealon) has more.