May 2018 produced 16 #1s across six music shows, shared by 6 artists and 6 songs.
The most wins went to GFriend (6), followed by BTS (5) and (G)I-dle (2).
The most-awarded song was “Time for the Moon Night” by GFriend with 6 wins on 6 shows, then “Fake Love” with 5.
Songs that swept five or more shows: “Time for the Moon Night”, “Fake Love”.
First-ever music show wins went to (G)I-dle — 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 |
|---|---|---|
| 2018-05-01 | The Show | That DayLovelyz |
| 2018-05-03 | M Countdown | EverydayWinner |
| 2018-05-04 | Music Bank | Star, You (The Only Star)Hwang Chi-yeul |
| 2018-05-08 | The Show | Time for the Moon NightGFriend |
| 2018-05-09 | Show Champion | Time for the Moon NightGFriend |
| 2018-05-10 | M Countdown | Time for the Moon NightGFriend |
| 2018-05-11 | Music Bank | Time for the Moon NightGFriend |
| 2018-05-12 | Show! Music Core | Time for the Moon NightGFriend |
| 2018-05-13 | Inkigayo | Time for the Moon NightGFriend |
| 2018-05-22 | The Show | Latata(G)I-dle |
| 2018-05-24 | M Countdown | Latata(G)I-dle |
| 2018-05-25 | Music Bank | Fake LoveBTS |
| 2018-05-26 | Show! Music Core | Fake LoveBTS |
| 2018-05-27 | Inkigayo | Fake LoveBTS |
| 2018-05-30 | Show Champion | Fake LoveBTS |
| 2018-05-31 | M Countdown | Fake LoveBTS |