"KARAOKE JOYSOUND" is a WiiWare game that allows you to enjoy online karaoke in the comfort of your home.
Going online gives you access to a large library of songs, with more being added all the time! Your voice's pitch is displayed while you sing, and you can also sing along with guide vocals on some songs. Using the scoring system ranks your performance, and you can also see how you fare against others in the rankings singing the same song. What's more, your initial software purchase comes with a complimentary 6-hour ticket (limited to one use). So gather your friends and have a blast singing karaoke together! Try it now!
Karaoke Joysound has no review on Wii's World.
I worked with those some years ago, and they are basically identical to the home unit, but it needed special recordable ...
Wii's World is not officially affiliated with Nintendo! (but they wish we were).