The #1 on Show! Music Core on 2019-12-21 was “Blueming” by IU — win No. 3 for the song and career win No. 28 for IU (No. 7 on this show). It also won Music Bank the same week (2 crowns).
“Blueming” has 3 music show wins in total: 2019-12-01 Inkigayo, 2019-12-20 Music Bank, 2019-12-21 Show! Music Core. IU had 6 wins in 2019 up to this date, and this was win No. 7 on Show! Music Core. The previous week's Show! Music Core #1 was “Obsession” by Exo. The other shows that week went to M Countdown: “Levanter” by Stray Kids; Inkigayo: “Hip” by Mamamoo. Episode data comes from broadcasters' published results (Wikipedia lists, CC BY-SA) and is recounted daily.
| Date | Show | Song · Artist | |
|---|---|---|---|
| 2019-12-19 | M Countdown | LevanterStray Kids | ★ #1 |
| 2019-12-20 | Music Bank | BluemingIU | ★ #1 |
| 2019-12-21 | Show! Music Core | BluemingIU | ★ #1 |
| 2019-12-22 | Inkigayo | HipMamamoo | ★ #1 |