Beyonce Knowles has invited fans to participate in an online dance contest.
The fans will be required to submit videos of themselves dancing to the singer's Single Ladies (Put A Ring On It) hit, reports Contactmusic.
The winner will receive 250,000 dollars and the video will be shown during Beyonce''s upcoming world tour.
The deadline is 6 March (09).
The R and B superstar was recently named the richest star under 30 years old, and has an estimated 80 million dollars in the bank.