The #1 on M Countdown on 2015-08-27 was “Lion Heart” by Girls' Generation — win No. 3 for the song and career win No. 17 for Girls' Generation (No. 4 on this show). It also won The Show, Show Champion, Music Bank, Show! Music Core, Inkigayo the same week (6 crowns).
“Lion Heart” has 7 music show wins in total: 2015-08-25 The Show, 2015-08-26 Show Champion, 2015-08-27 M Countdown, 2015-08-28 Music Bank, 2015-08-29 Show! Music Core, 2015-08-30 Inkigayo, 2015-09-19 Show! Music Core. Girls' Generation had 9 wins in 2015 up to this date, and this was win No. 4 on M Countdown. The previous week's M Countdown #1 was “Zutter” by GD & TOP. Episode data comes from broadcasters' published results (Wikipedia lists, CC BY-SA) and is recounted daily.
| Date | Show | Song · Artist | |
|---|---|---|---|
| 2015-08-25 | The Show | Lion HeartGirls' Generation | ★ #1 |
| 2015-08-26 | Show Champion | Lion HeartGirls' Generation | ★ #1 |
| 2015-08-27 | M Countdown | Lion HeartGirls' Generation | ★ #1 |
| 2015-08-28 | Music Bank | Lion HeartGirls' Generation | ★ #1 |
| 2015-08-29 | Show! Music Core | Lion HeartGirls' Generation | ★ #1 |
| 2015-08-30 | Inkigayo | Lion HeartGirls' Generation | ★ #1 |