Since they aren’t all equally likely to be played - surely she’ll use a spot on a widely beloved track like “Picture to Burn” and not, I don’t know, “Crazier” from the Hannah Montana soundtrack - we need an objective, data-driven metric that takes into account each remaining song’s commercial success, fan popularity, history on previous tour set lists, and suitability for a stripped-down acoustic cover.Īn Objective Data-Driven Metric That Takes Into Account Each Remaining Song’s Commercial Success, Fan Popularity, History on Previous Tour Set Lists, and Suitability for a Stripped-Down Acoustic Cover:īillboard Hot 100 Chart data: The first listing on my model is a chart score, which factors in both peak position and total weeks on the Hot 100.

We can then eliminate the songs she’s already chosen as surprises so far this tour, as well as “invisible string,” which she removed after breaking up with its muse, former boyfriend/block of unfrosted vanilla cake Joe Alwyn. Of those, 43 are already on the main Eras set list each night, which takes us down to 161 options.

If you count every song on the longest version of each (“Bonus,” “3 a.m.,” “Taylor’s Version,” et al.) and add in every B-side, collaboration, and stray Christmas-themed track, you end up with 204 in total.