Will "Patient Zero - Taylor Swift" be the #1 song this week?

Kalshi — primary rule

If Patient Zero by Taylor Swift is #1 on the Billboard Hot 100 chart for the Week of Oct 10, 2026, then the market resolves to Yes.

Polymarket — resolution criteria

Spotify curates a playlist of the most streamed songs globally and updates it on Fridays to reflect streaming data for the previous week, beginning on the preceding Friday and ending on Thursday. This market will resolve according to the most-streamed song globally on Spotify for the week labeled October 2. If Spotify does not release its top song for the week labeled October 2 by October 3, 2026, 11:59 PM ET, this market will default to "Other". The resolution source for this market will be official information from Spotify. The weekly top songs chart can be found on open.spotify.com under the "Charts" heading. This market and these products have not been endorsed by Spotify. Any references to Spotify, Spotify charts, streaming data, or any associated marks are descriptive only and do not indicate an endorsement of this product or any affiliation between Spotify and Polymarket. Spotify and related marks are the property of Spotify AB and its group companies.