St. Paul and the Broken Bones frontman Paul Janeway has been gifted one of the most powerful voices in music, bringing venues to their knees left and right with his powerhouse vocals and equally soulful band. But forgive Janeway if the Birmingham, AL native isn’t up to date on pop culture, most notably the buzz surrounding the Fifty Shades of Grey movie.

For those of you who might also find yourselves confused, the movie centers around the erotic novel by E.L. James. There are whips, floggers, and something called a “Red Room of Pain.” It is the first movie in quite some time to undergo review for the dreaded “NC-17” rating and is most definitely not a romantic comedy. In an interview with Mother Jones, Janeway describes the moment he first realized the not-so-romantic nature of it all after giving his band’s tune “Call Me” to the movie to use.

“When they presented the licensing opportunity, they presented it as: It’s going to be a huge movie, they want to put a decent amount of the song in the movie in a nonsexual scene,” he said. “I knew it was a book, but I had no idea what it was. So I was like, sure, big movie, good exposure. I’ll be in this romantic comedy. Which is what I thought it was: a romantic comedy. It’s a good way to make money in the music business, you know. Then I saw a preview for it, and I was like, ‘Oh, shit. Oh, no. What have I done?'”

To Janeway’s credit, he finds the humor in it all. “To me it’s kind of funny. I’m glad it’s in a nonsexual scene to be honest with you, not for my sake but for my family’s sake. I don’t have any moral things about it. It’s not like we’re in the movie—it’s just a song for a minute.” Never lose this innocence, Paul.

Anyway, check out Janeway and the rest of the Broken Bones electrifying David Letterman with “Call Me.”