January 2015 produced 18 #1s across six music shows, shared by 8 artists and 8 songs.
The most wins went to Jonghyun (6), followed by EXID (4) and Mad Clown (3).
The most-awarded song was “Déjà-Boo” by Jonghyun with 6 wins on 6 shows, then “Up & Down” with 4.
Songs that swept five or more shows: “Déjà-Boo”.
First-ever music show wins went to EXID, Jonghyun, Mad Clown, Jung Yong-hwa — 4 artists in total.
Counts are recomputed every morning from each show's published results (Wikipedia lists, CC BY-SA). Weeks without a broadcast or record are shown in grey; dates open episode pages.
| Date | Show | Song · Artist |
|---|---|---|
| 2015-01-02 | Music Bank | December, 2014 (The Winter's Tale)Exo |
| 2015-01-03 | Show! Music Core | LuvApink |
| 2015-01-04 | Inkigayo | Good BoyGD X Taeyang |
| 2015-01-08 | M Countdown | Up & DownEXID |
| 2015-01-09 | Music Bank | Up & DownEXID |
| 2015-01-11 | Inkigayo | Up & DownEXID |
| 2015-01-13 | The Show | Up & DownEXID |
| 2015-01-17 | Show! Music Core | Déjà-BooJonghyun |
| 2015-01-18 | Inkigayo | Déjà-BooJonghyun |
| 2015-01-20 | The Show | Déjà-BooJonghyun |
| 2015-01-21 | Show Champion | Déjà-BooJonghyun |
| 2015-01-22 | M Countdown | Déjà-BooJonghyun |
| 2015-01-23 | Music Bank | Déjà-BooJonghyun |
| 2015-01-25 | Inkigayo | FireMad Clown |
| 2015-01-28 | Show Champion | FireMad Clown |
| 2015-01-29 | M Countdown | FireMad Clown |
| 2015-01-30 | Music Bank | One Fine DayJung Yong-hwa |
| 2015-01-31 | Show! Music Core | Cry AgainDavichi |