Simon Cowell is considered a brainchild for more reasons than one and now "The X Factor" fans know why. Cowell offered not one, but two surprise twists in Thursday's elimination episode of "The X Factor." Last week, the show was left with the Top 12 and unexpectedly Cowell shocked viewers and the live audience when he announced that the judges realized they made a mistake and would return a contestant who was booted last week. "We watched the show back and the final 12 we're very happy with, but we believe we made a mistake with one act," said Cowell. In case the crowd misunderstood Cowell, the show's host Mario Lopez added, "We had 12 acts and now apparently we have 13...Welcome the 13 finalists!"