A pretty girl who won national fame after singing at the opening ceremony of the Olympic Games was only miming.

Wearing a red dress and pigtails, Lin Miaoke charmed a worldwide audience with a rendition of “Ode to the Motherland”.

But the singer was Yang Peiyi, who was not allowed to appear because she is not as "flawless" as nine-year-old Lin.

The show's musical director said Lin was used because it was in the best interests of the country.

The revelation follows news that a fireworks display used during the opening ceremony was apparently faked.