Taylor Swift's 'Patient Zero' is her newest No. 1 hit. Here are all 16 of her songs that topped the chart.

Taylor Swift's newest single, 'Patient Zero,' debuted at No. 1 on the Billboard Hot 100. Swift has the fourth-most No. 1 hits in history, trailing Elvis, Mariah Carey, and The Beatles. Since releasing her first No. 1 album in 2008, Taylor Swift has enjoyed a historic run on the charts, topping the Billboard 200 and Billboard Hot 100 over a dozen times each. Swift's collection of chart-toppers includes both radio-friendly pop singles and understated gems pushed to the top of the chart by passionate fans.

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