May 2013 produced 10 #1s across six music shows, shared by 6 artists and 6 songs.
The most wins went to Shinhwa (3), followed by 4Minute (2) and Cho Yong-pil (2).
The most-awarded song was “This Love” by Shinhwa with 3 wins on 3 shows, then “Bounce” with 2.
No song swept five or more shows.
First-ever music show wins went to Cho Yong-pil, Roy Kim, B1A4, 2PM — 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 |
|---|---|---|
| 2013-05-03 | Music Bank | BounceCho Yong-pil |
| 2013-05-04 | Show! Music Core | BounceCho Yong-pil |
| 2013-05-09 | M Countdown | What's Your Name?4Minute |
| 2013-05-11 | Show! Music Core | Spring Spring SpringRoy Kim |
| 2013-05-18 | Show! Music Core | What's Going On?B1A4 |
| 2013-05-19 | Inkigayo | What's Your Name?4Minute |
| 2013-05-23 | M Countdown | This LoveShinhwa |
| 2013-05-24 | Music Bank | Comeback When You Hear This Song2PM |
| 2013-05-25 | Show! Music Core | This LoveShinhwa |
| 2013-05-31 | Music Bank | This LoveShinhwa |