Stella Lefty’s “Boston” holds a near-certain lock on the No. 2 spot for the Billboard Hot 100 dated September 19 because it has remained anchored there for weeks through steady streaming, radio airplay, and sales that show no meaningful erosion. Its pop-country fusion continues to resonate widely, outpacing competitors in consistent consumption metrics while Ella Langley’s “Choosin’ Texas” dominates the top position for a record 22nd week. Taylor Swift’s “I Knew It, I Knew You,” the Toy Story 5 soundtrack single, sits firmly at No. 3 with stable but lower engagement. An upset would require an abrupt late-week surge in streams or sales for one of the trailing tracks, an outcome that historical tracking patterns and current velocity make highly improbable before the chart finalizes.