I love Ayu and I like Namie, but doing a collab together wouldn't be a good idea, I think. Their music is way to different and I don't think their voices would match.
By the way, technically Ayu may not be the best singer. I watched Namies BEST FICTION and Play tour and her vocals weren't god at all. Both ladies aren't the best singers in the world. But being technically a good singer isn't what matters the most for their fans. And to be honest, I prefer the sound of Ayu's voice a hundred times over those voices of people who are called great singers. And of course you may find that Namie is a better singer and that you prefer her voice. But to say "I have vocal training and know it better than you all" really causes me to laugh because it's a really dump way of trolling.
And yeah, I know that Ayu IS the BEST singer in the world because I have a record deal.
