In the dead of the night, Williams snuck up to Carly Butler's house under a Wolf Moon.
Hayley Williams made a special delivery to one of her Nashville superfans during Thursday night's (Jan. 29) Wolf Moon, slipping a copy of the unreleased track "My Limb" to Carly Butler and giving her permission to "leak" it.
The hand-off from what the Paramore singer joked in an Instagram Stories video was her new service, "Murder Postmates," contained a slow burn, mid tempo track.
“Did Hayley Williams drive to your house and drop off a candle and a CD with her new song on it or are you having a normal night,” Butler tweeted about the unexpected visit from the Williams, who chronicled the dead-of-night hand-off in a cheeky video. "Okay, we're going to drop off a Sanctuary candle and a burnt copy of one of the songs to Carly in Nashville right now," said a masked Williams in the night vision shoot. "I hope she doesn't think I'm coming to murder her if she looks out her window at just the right time. Or I hope she does, I don't know."