Spotify curates a playlist of the most streamed songs globally and updates it by 6PM to reflect streaming data for the previous day, beginning at 12AM UTC and ending 11:59PM the preceding day.

This market will resolve to "Yes" if Mariah Carey's 'All I Want For Christmas Is You' is the most-streamed song globally on Spotify for the day labeled December 25.

If Spotify does not release its top song for December 25 by December 26, 2025, 11:59 PM ET, this market will resolve to "No".

The resolution source for this market will be official information from Spotify. The daily top songs chart can be found on open.spotify.com under the "Charts" heading.