Taylor Swift’s “Patient Zero,” released September 25 as the lead track from The Life of a Showgirl: The Encore edition, drives the near-certain market consensus. The single posted record-breaking first-day streams for a female artist in 2026, debuted at No. 1 on the UK Official Singles Chart, and benefited from a high-profile music-video premiere at the MTV VMAs plus strong pre-release buzz. These factors, combined with Taylor’s established pattern of immediate Hot 100 debuts on major releases, have produced overwhelming trader confidence in a chart-topping week of October 10. A realistic upset would require an unforeseen late surge from a competing track or a dramatic shift in streaming and sales data during the final tracking days.