"We wrote ‘Attachment Theory’ after a friend asked us to write a song about attachment styles. It seems as though everyone is obsessed with the idea and with self-diagnosing, so we decided to write a confessional song about ours," IDER explains. "On a deeper and more emotional level it's about the fear of being defined by the way you love and desperately wanting to change it."

"Attachment Theory" follows previous singles, "Know How It Hurts", "Late To The World", “Unlearn” and "Girl".

Discussing the video, they add: "We made the video for ‘Attachment Theory’ with director and friend Basha De Bruijn. The concept was simple - us crying and "getting through life" in everyday situations filmed around London and at Meg's flat, to capture the raw and real message of the song. The video was shot on 16mm film which made the final visual and the filming experience as true to life as possible."