Beyonce Knowles - Knowles Duet Helps Contestant Win X Factor

R+B superstar BEYONCE KNOWLES proved she has the Midas touch with her appearance on hit U.K. TV talent show THE X FACTOR - the contestant she collaborated with won the $1.5 million (GBP1 million) prize.

The Crazy In Love hitmaker thrilled British fans when she performed on the show with Alexandra Burke in the series finale in London on Saturday (13Dec08).

Knowles joined a stunned Burke onstage and blew the audience away with a rendition of Listen - a track she sang in hit 2006 movie Dreamgirls.

And it seemed the appearance worked for the 20-year-old contestant - she was crowned 2008's X Factor winner just hours after her performance with Knowles.

Burke will follow in the footsteps of former winner Leona Lewis - she has received a $1.5 million (GBP1 million) record deal and a management contract with the show's judge Simon Cowell.

Knowles, who reportedly scooped $1.5 million (GBP1 million) for the appearance - also performed a rock version of her worldwide smash If I Was A Boy.