BTS did this on Spotify to countdown to the release of the remix of Mic Drop:
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Jungkook: M
Jin: I
Jimin: C
Suga: D
RM: R
J-Hope: O
V: P
They updated the cover of their own playlists one by one and once V updated, THE REMIX GOT RELEASED!
It's actually a really creative way of counting down.
