May 2017 produced 16 #1s across six music shows, shared by 8 artists and 8 songs.
The most wins went to Twice (5), followed by IU (3) and Psy (2).
The most-awarded song was “Signal” by Twice with 5 wins on 5 shows, then “Palette” with 3.
Songs that swept five or more shows: “Signal”.
First-ever music show wins went to Hyukoh, Sechs Kies, Lovelyz — 3 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 |
|---|---|---|
| 2017-05-05 | Music Bank | PaletteIU |
| 2017-05-11 | M Countdown | TomboyHyukoh |
| 2017-05-12 | Music Bank | Be WellSechs Kies |
| 2017-05-13 | Show! Music Core | Be WellSechs Kies |
| 2017-05-16 | The Show | Now, WeLovelyz |
| 2017-05-17 | Show Champion | PaletteIU |
| 2017-05-18 | M Countdown | I Luv ItPsy |
| 2017-05-19 | Music Bank | PaletteIU |
| 2017-05-21 | Inkigayo | I Luv ItPsy |
| 2017-05-23 | The Show | Shangri-LaVIXX |
| 2017-05-24 | Show Champion | SignalTwice |
| 2017-05-25 | M Countdown | SignalTwice |
| 2017-05-26 | Music Bank | SignalTwice |
| 2017-05-27 | Show! Music Core | SignalTwice |
| 2017-05-28 | Inkigayo | SignalTwice |
| 2017-05-30 | The Show | Don't Wanna CrySeventeen |