"Sing your heart out to the large catalog of 1500+ hottest hits by your favorite artists. Meet incredible singers from all over the world and publish your own performances to a global audience." --> No doubt his will be big in Japan

Singa has raised funding to go global, and expand its Pro version https://techcrunch.com/2017/06/0...

Looks like a neat app but it's a bit of a pain that I would need to create a new UK store apple ID just to download it to try it out.

This karaoke app rocks! Karaoke on your mobile instantly available whenever.