 They revealed on social media that they were collaborating with Carly Rae Jepsen on new material.The group, along with Jack Antonoff and Rami Yacoub, are expected to produce material for Jepsen's upcoming fourth studio album.In October 2016, Whilst the duo were embarking on their European tour, they announced that a new single, titled "Heat", featuring vocals from X Ambassadors lead singer Sam Nelson Harris, was to be released on 21 October 2016.