The #1 on Show! Music Core on 2015-01-17 was “Déjà-Boo” by Jonghyun — win No. 1 for the song and career win No. 1 for Jonghyun (No. 1 on this show). It also won Inkigayo the same week (2 crowns).
“Déjà-Boo” has 6 music show wins in total: 2015-01-17 Show! Music Core, 2015-01-18 Inkigayo, 2015-01-20 The Show, 2015-01-21 Show Champion, 2015-01-22 M Countdown, 2015-01-23 Music Bank. Jonghyun had 1 wins in 2015 up to this date, and this was the artist's first win on Show! Music Core. The previous week's Show! Music Core #1 was “Luv” by Apink. The other shows that week went to The Show: “Up & Down” by EXID. Episode data comes from broadcasters' published results (Wikipedia lists, CC BY-SA) and is recounted daily.
| Date | Show | Song · Artist | |
|---|---|---|---|
| 2015-01-13 | The Show | Up & DownEXID | ★ #1 |
| 2015-01-17 | Show! Music Core | Déjà-BooJonghyun | ★ #1 |
| 2015-01-18 | Inkigayo | Déjà-BooJonghyun | ★ #1 |