The #1 on M Countdown on 2019-09-05 was “Flash” by X1 — win No. 3 for the song and career win No. 3 for X1 (No. 1 on this show). It also won The Show, Show Champion, Music Bank, Inkigayo the same week (5 crowns).
“Flash” has 6 music show wins in total: 2019-09-03 The Show, 2019-09-04 Show Champion, 2019-09-05 M Countdown, 2019-09-06 Music Bank, 2019-09-08 Inkigayo, 2019-09-18 Show Champion. X1 had 3 wins in 2019 up to this date, and this was the artist's first win on M Countdown. The previous week's M Countdown #1 was “Umpah Umpah” by Red Velvet. Episode data comes from broadcasters' published results (Wikipedia lists, CC BY-SA) and is recounted daily.
| Date | Show | Song · Artist | |
|---|---|---|---|
| 2019-09-03 | The Show | FlashX1 | ★ #1 |
| 2019-09-04 | Show Champion | FlashX1 | ★ #1 |
| 2019-09-05 | M Countdown | FlashX1 | ★ #1 |
| 2019-09-06 | Music Bank | FlashX1 | ★ #1 |
| 2019-09-08 | Inkigayo | FlashX1 | ★ #1 |