Sarah Brightman

Sarah Brightman

Sarah Brightman will team up with Chinese singer Liu Huan to perform the official theme song at the opening ceremony of the Beijing Olympics.The odd couple will perform a duet, which will end the hour-long ceremony on Friday night at the National Stadium. The theme tune is such a big secret, ceremony officials have refused to release the title of the track.It's not the first time British singer Brightman has been chosen to sing an Olympic theme - she dueted with Jose Carreras for the 1992 anthem Amigos Para Siempre at the Barcelona Games in Spain.