Beyonce is looking for the best cover of one of her new songs in the MySpace Karaoke Contest. Record your version of "Ego", "Halo" or "Sweet Dreams" for your chance to win a number of prizes, including a grand prize of round-trip airfare for two to Las Vegas to see Beyonce in concert! The contest is open until next Tuesday, June 30th. Click HERE to visit MySpace for more details and to enter now!"