May 2012 produced 4 #1s across six music shows, shared by 3 artists and 3 songs.
The most wins went to Girls' Generation-TTS (2), followed by Infinite (1) and 4Minute (1).
The most-awarded song was “Twinkle” by Girls' Generation-TTS with 2 wins on 2 shows, then “Volume Up” with 1.
No song swept five or more shows.
First-ever music show wins went to 4Minute, Girls' Generation-TTS, Infinite — 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 |
|---|---|---|
| 2012-05-03 | M Countdown | Volume Up4Minute |
| 2012-05-10 | M Countdown | TwinkleGirls' Generation-TTS |
| 2012-05-11 | Music Bank | TwinkleGirls' Generation-TTS |
| 2012-05-31 | M Countdown | The ChaserInfinite |