Earlier this month, Lorde cited a National Geographic image as the inspiration behind her chart topper, “Royals.”

“I had this image from the National Geographic of this dude just signing baseballs,” Lorde said  “He was a baseball player and his shirt said, ‘Royals.’”

The photo, taken in July 1976, depicts future hall-of-famer George Brett signing baseballs among a crowd of fans.

Lorde, a self-proclaimed “word fetishist,” said the word “Royals” across Kansas City Royals player George Brett’s jersey stuck with her and inspired her to write the song.