Voice coaches are SHOCKED after turning their chairs

With these beautiful voices it is almost impossible to guess whether

it's a boy or girl. Did you guess correctly? You can test yourself!

WATCH THE FULL PERFORMANCES:
1. Marlo sings 'Jar of hearts' (The Voice of Spain):
https://www.youtube.com/watch?v=rnGbx...
2. Côme sings 'Feeling Good' (The Voice France / la plus belle voix):
https://www.youtube.com/watch?v=dOxpO...

            3. Josh Richards sings 'I'll Be There' (The Voice Australia):
https://www.youtube.com/watch?v=oZsJw...
                       4. Sebastian James Hekneby sings 'Chandelier' (The Voice Norge):
https://www.youtube.com/watch?v=-berD...
                      5. Nikola Konstantinov sings 'Flashlight' (The Voice of Bulgaria):

https://www.youtube.com/watch?v=AvfyU...