Beyoncé Knowles donned white again when she took to the stage at the United Nations General Assembly on Friday in New York City.

The singer performed ‘I Was Here’, which was taped in front of a live audience to premiere August 19 on World Humanitarian Day.

Not only did she leave the audience breathless with her performance, but also her stunning Marc Bouwer Pre-Fall 2012 gown.

Her white micro-sequin long-sleeve gown with bold shoulders and a cut-out detail could be mistaken for a couture gown.

Once again she opted for no accessories, keeping her makeup natural with a sleek ponytail.

An early candidate for BDOTW.

Credit: Marc Bouwer & AP