k.d. Performs "Hallelujah" at Opening Ceremony of Vancouver Olympics

Four-time Grammy Award–winner and eight-time Juno Award–winner k.d. lang has wowed crowds across the globe with her interpretation of the Leonard Cohen classic "Hallelujah" for the past several years. Tonight, she performed the song before the world's greatest athletes and what's estimated to be three billion television viewers around the world at the Opening Ceremonies of the 2010 Winter Olympic Games in Vancouver.