Sure, most 20-year-olds have not starred in a globally beloved Netflix sci-fi series as well as half a dozen big-budget films. But like seemingly everyone on the planet these days, Stranger Things star Millie Bobby Brown is totally obsessed with Taylor Swift.

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During a visit to the Kelly Clarkson Show on Wednesday (March 6), MBB fessed up to not only being a “hardcore Swiftie,” but to knowing “exactly where she [Swift] is at all times.” While Clarkson joked that “some might call that a stalker,” Brown promised that her surveillance is “loosely based” and not at all creepy.

“No, I love Taylor… I went to the Eras Tour and it was just… it was the most amazing experience,” Brown said, struggling to find the words to describe the career-spanning extravaganza that is currently in Singapore for a few more days before moving on to four nights in Paris. “The fans there are just so… they’re the same as me we love her that much,” Brown said.

How deep is Brown’s affection? She and her sister have a tally board on which they cross out the surprise songs Swift has performed on each date so far so they know which tracks the singer might bust out next. “So when I went to my show — I went to Ohio, I flew there solely for Taylor — and she played ‘Evermore’ and I collapsed to the ground. It was pretty crazy,” Brown said.

The actress is out and about promoting her upcoming Netflix swords and dragons movie Damsel, which drops on Friday (March 8).

Watch Millie Bobby Brown on the Kelly Clarkson Show below.