Beyonce performs at U.N. for World Humanitarian Day
Her performance for World Humanitarian Day, which honors aid workers killed in the line of duty around the world, was filmed for a broadcast to air Aug. 19.
Before Jay-Z's wife and new mom to daughter Blue Ivy sang the ballad before a screen designed by director Ridley Scott, U.N. Deputy Secretary General Jan Eliasson praised the pop star.
"Tonight [she] brings more than her stunning talents; she brings inspiration to help another person, to help another human being," he said, calling "I Was Here," written by Diane Warren, a "profound and moving song."
Beyonce herself closed the event, saying, "I'd like to ask everyone to make sure they're a part of August 19. It's such a beautiful, beautiful day.
"And I'd like to honor the 22 people who lost their lives," she said about the humanitarian workers killed in a terrorist attack in Iraq on August 19, 2003, which Eliasson called a "dark day in the history of the U.N."
"God bless you all," concluded Beyonce. "Thank you so much for having me."