Dan + Shay have unveiled the complete tracklist for their upcoming album, Young, due out Aug. 21 through Warner Records Nashville, while sparking a social media guessing game around a still-unnamed collaborator. Alongside the reveal, Dan + Shay confirmed a mystery guest artist will appear on "The Old Guys," though the collaborator's name was blurred out in the accompanying Instagram post. The duo is inviting fans to guess the artist's identity for a chance at a prize: the first five people to correctly tag the featured artist will receive a signed vinyl copy of the album. The tracklist reveal is the latest step in a rollout that has leaned heavily on fan interaction, with the duo sharing previews and encouraging listeners to speculate and engage across social platforms in the weeks before the album's release. Dan + Shay have called Young their most personal project yet and have thanked fans repeatedly for their support throughout its creation.