There are certain words that keep journalists up at night. Last night in my bedroom at 11:58 p.m., the word was “Michelins.”

NEW YORK, NY - APRIL 30: Singer Carrie Underwood visits the Z100 Elvis Duran Morning Show at Z100 Studio on April 30, 2012 in New York City. (Getty Images)

Great song, but I still had a question: What brand of tire would Carrie Underwood slash? Firestones? It didn’t sound right. Goodyears are popular — but that made me think of the blimp, which would muddle a jack-o-lantern metaphor I was setting up. Should I call my truck-owning cousins? “Hey, man! Sorry for not calling the past seven Christmases, but, um, do you like Carrie Underwood? And what kind of tires are you using these days?” Nah.

I went to a consumer site that said Michelins were the highest-ranked brand of tire for pickup trucks. I liked the sound of “Michelins” and I came up with some fall-back reasoning, too. If it turns out Michelins are for losers, that’s fine. Carrie’s cheating beau is a loser. Michelins. Michelins. Michelins, Regis. Final answer.

“Double-cross this one and she’ll carve up the Michelins on your pickup like a jack-o’-lantern,” I wrote.

At 9:39 a.m.Tuesday, I received an email from a reader in Takoma Park:

“Subject: Michelins? MICHELINS?????

Hey Chris --  No self-respecting country music fan is going to have Michelins on the truck.  We use Goodyear. . . .”

My impulse is to trust a reader passionate enough to use five question marks in a subject line, but just in case, I’ll be arriving at my next Carrie Underwood concert an hour early so I can scope out the tires in the parking lot.

Chris Richards is The Washington Post's pop music critic. He has recently written about Future's ability to torque time, Rihanna's reign over the selfie surveillance state, and the authoritarian hold music used at Donald Trump's rallies.