Each competitor takes the stage to play a song and three judges evaluate the performance, giving from zero to three rings - three blue rings takes you to the next step, however any red ring is enough to eliminate it. If he gets the three blue rings, the competitor goes on to the second round in the sequence, where he will challenge one of the four high-level candidates previously chosen by the jury. The new competition and the challenged of The Four team sing, through the judging of the judges and audience, who give the note. If the new challenger is the winner, he takes the position in one of the four seats and shields it for the rest of the night and can not be challenged while the former owner is eliminated. At the end of the challenges, the remaining four members compete with each other, the winner being the one who can beat the other three.
