Taylor Swift performs during the Eras Tour in Denver.
Grace Smith/MediaNews Group/The Denver Post via Getty Images
- Taylor Swift's single "Fortnight," featuring Post Malone, debuted at No. 1 on the Billboard Hot 100.
- The song is Swift's 12th chart-topper, joining the ranks of hits like "Shake It Off" and "Anti-Hero."
- All of Swift's No. 1 songs are listed below in chronological order of their peak dates.
1. "We Are Never Ever Getting Back Together""We Are Never Ever Getting Back Together" hit No.