[lastfm link_type="artist_info"]Christina Aguilera[/lastfm] performed the US national anthem at Super Bowl XLV. The singer dared to sing the song live at the event and encountered several difficulties in the process.
[lastfm link_type="artist_info"]Christina Aguilera[/lastfm] performed the US national anthem at Super Bowl XLV. The singer dared to sing the song live at the event and encountered several difficulties in the process.