Ok, i thought it was one of the many joke ads they do, but the Koreans, Waktaverse actually made a site and mobile app to track their song numbers.
https://www.youtube.com/watch?v=2Fa9vkmtDiACalled it Billboardoo, because that's allowed in Korea apparently.
https://billboardoo.com/charts/weeklythey're really going heavy on the music group route.
