Nothing says romance quite like gatekeeping.

Author Walter Isaacson working on an upcoming biography about Elon Musk posted an excerpt of the book to X, formerly Twitter, Monday.

The excerpt he shared outlines Musks courtship with Grimes , and to some, the Tesla CEOs flirting style may seem a bit off the beaten path.

According to the excerpt, the Oblivion singer compared Musk to J.R.R. Tolkiens fictional wizard Gandalf on their second date. Her reference immediately resulted in Musk giving her a rapid-fire trivia test on Lord of the Rings.

He wanted to see whether she was truly a faithful fan. She passed, Isaacson wrote.

That mattered to me, Musk told Isaacson of Grimes passing his little pop quiz.