https://techcrunch.com/2019/04/13/twitchs-first-game-the-karaoke-style-twitch-sings-launches-to-public/

Amazon-owned game-streaming site Twitch is today publicly launching its first game. But it’s not a traditional video game — like those the site’s creators stream for their fans. Instead, the new game is called “Twitch Sings” and is a free karaoke-style experience designed for live streaming.

The game, which was launched into beta last year, includes thousands of karaoke classics that players can sing either alone or in a duet with another person. In addition, streamers can choose to sing as themselves in a live camera feed, or they can create a personalized avatar that will appear in their place. (The songs are licensed from karaoke content providers, not the major labels.)