Beyoncé Knowles took the stage during last night's Billboard Music Awards to sing her new song "Run the World (Girls)" live for the first time. The performance was full of Beyoncé's signature dance moves and some interesting background graphics. Beyoncé went on to accept the Millennium Award and gave a sweet thank you to her husband, Jay-Z, who was in the audience. Beyoncé's debut was introduced by her parents, First Lady Michelle Obama, and even Bono. Check out the clip below and tell us what you think of her track's live debut — rock on or turned off?