Japanese “secret” Button on Spotify

What it signals here

playlist usage

Used in playlist names for curated 'hidden gems' or underrated tracks that the creator wants to keep under the radar.

mood mapping

Maps to mysterious, cinematic, or underground moods — dark ambient, lo-fi mystery, and secret rave vibes.

bio use

Artists place it in bios to hint at upcoming unreleased projects or secret collab announcements.

artist context

Used by indie or underground artists to brand themselves as undiscovered or deliberately niche and exclusive.

See it elsewhere