If you were watching the Grammy Awards closely last night, you might have noticed a common theme pop up a few times during the show: the presence of horns.
Perhaps the most noteworthy star to don light-up, red devil horns was pop singer Katy Perry, though she was hardly the only performer or audience member to wear them.
While some viewers expressed confusion as to why the devil horns were making an appearance, Business Insider reported that they were handed out to accompany AC/DC’s opening performance of “Highway to Hell,” noting that the band’s name was actually printed on them.
The horns weren’t present throughout the entire night, though, as a message reportedly popped up on the Grammy teleprompter asking audience members — Perry included — to put them away for the remainder of the show.
“Ladies and gentlemen: the devil horns are yours to keep, but please put them away for the rest of the show. Thank you,” the message read, according to tweets sent by Matthew Belloni, executive editor at Hollywood Reporter, and an Instagram photo from People Magazine.
But that wasn’t the only purported reference to the devil, as MTV quipped that “Madonna got kind of satanic with a bunch of masked, horned bull-men” during her performance for the song “Living For Love.”
While its unclear exactly what Madonna was aiming for on the religious symbolism front, the performance did feature images of crosses.
Watch it below: