https://phys.org/news/2018-06-facebook-music-feature-lip-sync-songs.html

Users can also post descriptions of their lip-sync performances. The live feed will clearly state the song and the artist and give viewers a chance to click and follow the musician on Facebook.

Dubbed Lip Sync Live, the feature looks set to be a competitor to Musical.ly, the popular karaoke-inspired app that originated in China.