The #1 on Show! Music Core on 2021-04-17 was “Lilac” by IU — win No. 5 for the song and career win No. 43 for IU (No. 11 on this show). It also won Music Bank the same week (2 crowns).
“Lilac” has 6 music show wins in total: 2021-04-01 M Countdown, 2021-04-04 Inkigayo, 2021-04-07 Show Champion, 2021-04-16 Music Bank, 2021-04-17 Show! Music Core, 2021-05-08 Show! Music Core. IU had 14 wins in 2021 up to this date, and this was win No. 11 on Show! Music Core. The previous week's Show! Music Core #1 was “On the Ground” by Rosé. The other shows that week went to The Show: “One” by Astro; Show Champion: “One” by Astro; M Countdown: “One” by Astro. Episode data comes from broadcasters' published results (Wikipedia lists, CC BY-SA) and is recounted daily.
| Date | Show | Song · Artist | |
|---|---|---|---|
| 2021-04-13 | The Show | OneAstro | ★ #1 |
| 2021-04-14 | Show Champion | OneAstro | ★ #1 |
| 2021-04-15 | M Countdown | OneAstro | ★ #1 |
| 2021-04-16 | Music Bank | LilacIU | ★ #1 |
| 2021-04-17 | Show! Music Core | LilacIU | ★ #1 |