Taylor Swift’s “Patient Zero,” released September 25 as the lead single from the surprise “The Life of a Showgirl: The Encore” expansion, drives the overwhelming market consensus for the Billboard Hot 100 dated October 10. The track’s immediate streaming surge, high-profile promotional rollout, and Swift’s established pattern of No. 1 debuts—bolstered by her recent “I Knew It, I Knew You” success—create a steep barrier for competitors. The music video’s premiere at the September 27 MTV VMAs adds further visibility during the key tracking period. While an upset remains possible through an unusually strong competing release or tracking anomaly, Swift’s historical performance and current momentum make any shift unlikely.