True to her word, Swift inserted a different pair of acoustic tunes – No. 36 and No. 37 in her exhaustive 44-song set – into the set lists of her inaugural shows in Glendale, Arizona.

Given the scope of her catalog, we expect nothing but unique offerings each night of her Eras spectacle and take seriously our duty to report her choices after every show. Yes, through its five-night conclusion in Los Angeles in August.

Are you ready for it?
The updated list of all Taylor Swift's surprise songs on her Eras tour:

1. "Mirrorball" (March 17: Glendale, Arizona, State Farm Stadium)

2. "Tim McGraw" (March 17: Glendale)

3. "This Is Me Trying" (March 18: Glendale)

4. "State of Grace" (March 18: Glendale)

5. "Our Song" (March 24: Las Vegas, Allegiant Stadium)

6. "Snow on the Beach" (March 24: Las Vegas)

7. "Cowboy Like Me" with Marcus Mumford (March 25: Las Vegas)

8. "White Horse" (March 25: Las Vegas)

9. "Sad Beautiful Tragic" (March 31: Arlington, Texas, AT&T Stadium)

10. "Ours" (March 31: Arlington, Texas)

11. "Death By a Thousand Cuts" (April 1: Arlington, Texas)

12. "Clean" (April 1: Arlington, Texas)

13. "Jump, Then Fall" (April 2: Arlington, Texas)

14. "The Lucky One" (April 2: Arlington, Texas)
Relive every moment of Taylor Swift's Eras tour:

    Review: Taylor Swift rewards fans with three-hour bonanza at Eras tour kickoff

    An epic setlist: Here are the 44 songs Taylor Swift performed on opening night

    Surprise! Taylor Swift drops four new songs on fans ahead of Eras tour

    In our wildest dreams: The 23 (13+10) songs Taylor Swift needs to sing

    'It pisses me off': Taylor Swift speaks out after Ticketmaster cancels her general ticket sale