Starikun is right. As for me, I'll absolutely choose the song that I like & easy to sing. That would be better.
Wow~ This is really interesting. Can't wait to watch the entries video XD
Btw I sing secretly too, to make it worst I live with a roommate in a hostel, she might thinks I'm weird/stupid/crazy to have such interest bcz she is narrowminded type LOL So sorry roommate DX but you don't accept any idea that you don't have interest on