May 2021 produced 22 #1s across six music shows, shared by 9 artists and 9 songs.
The most wins went to NCT Dream (5), followed by Itzy (4) and Enhypen (3).
The most-awarded song was “Hot Sauce” by NCT Dream with 5 wins on 5 shows, then “In the Morning” with 4.
Songs that swept five or more shows: “Hot Sauce”.
First-ever music show wins went to Enhypen — 1 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 |
|---|---|---|
| 2021-05-01 | Show! Music Core | Inside OutNU'EST |
| 2021-05-02 | Inkigayo | Inside OutNU'EST |
| 2021-05-04 | The Show | Drunk-DazedEnhypen |
| 2021-05-05 | Show Champion | Drunk-DazedEnhypen |
| 2021-05-06 | M Countdown | In the MorningItzy |
| 2021-05-07 | Music Bank | Drunk-DazedEnhypen |
| 2021-05-08 | Show! Music Core | LilacIU |
| 2021-05-09 | Inkigayo | Rollin'Brave Girls |
| 2021-05-11 | The Show | Not The EndHighlight |
| 2021-05-12 | Show Champion | In the MorningItzy |
| 2021-05-14 | Music Bank | In the MorningItzy |
| 2021-05-15 | Show! Music Core | Not The EndHighlight |
| 2021-05-16 | Inkigayo | In the MorningItzy |
| 2021-05-18 | The Show | Dun Dun DanceOh My Girl |
| 2021-05-19 | Show Champion | Hot SauceNCT Dream |
| 2021-05-20 | M Countdown | Hot SauceNCT Dream |
| 2021-05-21 | Music Bank | Hot SauceNCT Dream |
| 2021-05-22 | Show! Music Core | Hot SauceNCT Dream |
| 2021-05-23 | Inkigayo | Hot SauceNCT Dream |
| 2021-05-26 | Show Champion | Dun Dun DanceOh My Girl |
| 2021-05-29 | Show! Music Core | ButterBTS |
| 2021-05-30 | Inkigayo | ButterBTS |