Beyonce Knowles
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Beyonce will sing live at Superbowl

1 February 2013 Last updated at 05:44 GMT

The singer Beyonce was criticised for lip synching the national anthem at President Barack Obama's inauguration.

She has admitted that she mimed, but says she will sing live at this weekend's Superbowl event in the US.

The BBC's Steve Kingstone reports.

Footage courtesy NFL Network