[3][4] In April 2016, Jones released One Voice involving duets with himself recorded when he was a boy soprano.

[6] The album One Voice at Christmas was revealed on a Flybe flight from London City Airport to Cardiff Airport by Jones singing "Walking in the Air" (which had made his fame due to associations with "The Snowman") on the plane.

[9] "Little Drummer Boy", his 2008 duet with Sir Terry Wogan is included as a bonus track.

[9] The album was recorded in California, United States, due to the producer living in New Zealand.

Jones stated that it felt odd recording "In the Bleak Midwinter" in August in a hot climate.