A website that led fans to Twenty One Pilots songs like “Jumpsuit” and “Nico and the Niners” has led to the discovery of a possible collaboration between the duo and pop vocalist Halsey.

“Emotional Arsonist” is the track’s name that appeared on BMI Repertoire, a music royalty and licensing website, which shows Halsey’s birth name under songwriting/composing credits.

A song titled ‘Emotional Arsonist’ has been added to @twentyonepilots’ BMI Repertoire. The new song is a supposed feature with @halsey. You may or may not remember but this same site have us the titles ‘Jumpsuit’ and ‘Nico and the Niners’ long before their release. 👀 pic.twitter.com/zs6u1gc8C6

— tøp tøday (@top__today) July 18, 2019

The credit doesn’t ensure Halsey’s performance as a part of the song, but does lead to a possibility of a first-time collaboration between the two.