Part of what makes Taylor Swift’s “Patient Zero” sound both instantly familiar and a little unexpected is how it brings together stylistic threads that the superstar singer-songwriter has explored separately throughout her career.⁠ ⁠ The reigning Billboard #Hot100 No. 1’s polished electropop foundation connects with 2020s Swift hits such as “Anti-Hero,” “Cruel Summer,” and “The Fate of Ophelia,” while its hip-hop-influenced rhythmic feel recalls another side of her catalog heard in earlier smashes such as “Blank Space,” “Bad Blood” and “Look What You Made Me Do.”⁠ ⁠ Then there’s the most distinctive sonic calling card in “Patient Zero”: its Celtic-leaning fiddle hook, tapping into the folk side of Swift’s music heard more prominently on a song such as “Willow” from 'Evermore.'⁠ ⁠ Check out key sonic factors that have helped “Patient Zero” become her latest No. 1 at the link in bio.