The #1 on M Countdown on 2017-09-21 was “Summer Rain” by GFriend — win No. 2 for the song and career win No. 24 for GFriend (No. 3 on this show). It also won The Show the same week (2 crowns).
“Summer Rain” has 2 music show wins in total: 2017-09-19 The Show, 2017-09-21 M Countdown. GFriend had 8 wins in 2017 up to this date, and this was win No. 3 on M Countdown. The previous week's M Countdown #1 was “Power” by Exo. The other shows that week went to Inkigayo: “Gashina” by Sunmi. Episode data comes from broadcasters' published results (Wikipedia lists, CC BY-SA) and is recounted daily.
| Date | Show | Song · Artist | |
|---|---|---|---|
| 2017-09-19 | The Show | Summer RainGFriend | ★ #1 |
| 2017-09-21 | M Countdown | Summer RainGFriend | ★ #1 |
| 2017-09-24 | Inkigayo | GashinaSunmi | ★ #1 |