The #1 on Show! Music Core on 2018-04-21 was “What Is Love?” by Twice — win No. 4 for the song and career win No. 39 for Twice (No. 4 on this show). It also won Show Champion, M Countdown, Music Bank, Inkigayo the same week (5 crowns).
“What Is Love?” has 5 music show wins in total: 2018-04-18 Show Champion, 2018-04-19 M Countdown, 2018-04-20 Music Bank, 2018-04-21 Show! Music Core, 2018-04-22 Inkigayo. Twice had 6 wins in 2018 up to this date, and this was win No. 4 on Show! Music Core. The previous week's Show! Music Core #1 was “Everyday” by Winner. The other shows that week went to The Show: “Jealousy” by Monsta X. Episode data comes from broadcasters' published results (Wikipedia lists, CC BY-SA) and is recounted daily.
| Date | Show | Song · Artist | |
|---|---|---|---|
| 2018-04-17 | The Show | JealousyMonsta X | ★ #1 |
| 2018-04-18 | Show Champion | What Is Love?Twice | ★ #1 |
| 2018-04-19 | M Countdown | What Is Love?Twice | ★ #1 |
| 2018-04-20 | Music Bank | What Is Love?Twice | ★ #1 |
| 2018-04-21 | Show! Music Core | What Is Love?Twice | ★ #1 |
| 2018-04-22 | Inkigayo | What Is Love?Twice | ★ #1 |