Debuting a new video performance put together in the name of charity, Beyoncé Knowles unveiled her World Humanitarian Day donated effort "I Was Here" on Saturday (August 18) as promised.

Having been pre-taped last Friday (August 10), the 30-year-old singer looked stunning in a sparkling white gown as she belted out the track in front of a live audience at the United Nations General Assembly Hall in New York City.

Co-directed by Kenzo Digital and Sophie Muller under the production of Scott Robinson, the concert-based clip comes in conjunction with Beyoncé and "I Was Here" songwriter Diane Warren having bestowed their musical work and the proceeds it generates to Wo rld Humanitarian Day efforts as a way to honor the victims of the horrific 2003 bombing in Baghdad.

Previously telling the UN assembly that it's just one small effort to show she cares, Knowles passionately declared, "We all see the headlines and think, 'What can I really do to help?' World Humanitarian Day is an opportunity for all of us to work together to make a difference."