Available on digital formats and 10-inch vinyl, On Christmas Day launches on October 24 via SPV Steamhammer. Guitarist Tony Clarkin wrote the lyrics, which were inspired by the Great War, and bassist Al Barrow says the song was the obvious choice when their record label asked for a festive single.

Barrow says: "SPV asked for a Christmas single. Tony explained that we don't really do Christmas songs, but that we had recorded one before. SPV listened to it and wanted to re-release it, but we wanted to re-record it from scratch. We thought as it's 100 years on, it's a great song to commemorate all the soldiers."