Who else to perform at the United Nations World Humanitarian Day General Assembly than Beyonce herself. She wore this angelic Marc Bouwer gown while singing her¬†I Was Here song off of her most recent album titled ’4′. Marc is a South African designer who we believe is a fashion genius. He perfected this dress with a subtle cut out chest panel, accentuated shoulders, and micro-beading. This dress is part of his Pre-Fall 2012 runway line, most likely making Beyonce one of the firsts to ever see or wear this gown. Her performance will air August 19th on Humanitarian Day.