Is world famous and wayyy wayyy more recognizable throughout the world than American Girl famous Taylor Swift.
It's like comparing Ronaldo with Taylor Swift. It's not even close, and not in the way chauvinistic (not the sexist kind, but the real definition of the word) American teeny boppers and their Moms think. Women all over the world know who Ronaldo is, and it's not in the tee hee freak out way that American girls know Taylor.
Don't forget, we're talking less than half of our population vs. the world here. Like Europe. And the Middle East. And Asia. Like China and Japan.
These places don't care a whit about Taylor Swift in the grand scale or scheme of things. But they know Ronaldo.