"Rockabye" was written by Clean Bandit and Norwegian singer Ina Wroldsen, together with Amar Malik and Steve Mac.

Wroldsen wrote the lyrics about her son, which, according to Grace Chatto, "is why it rings so true for Clean Bandit and is so emotional and special.

Grace described the situation as a terrible experience and she almost quit the band because she felt "I did feel like I couldn’t do it anymore because the idea that my business was hurting people … that was really painful.

We first heard her singing with Rudimental and we've met her at a million festivals over the past couple of years – it's been so lovely to collaborate together".

Cinematography by Anna Patarakina and Daria Geller, who the band originally met when Jack was at film school in Moscow aged 21.

They have worked on many music videos directed by Jack and Grace, including Mozart's House, Dust Clears, and Symphony.

[8] Parts of it were shot on location in Cap Sa Sal, Begur, Spain and the George Tavern, London.

[17] In the United States, "Rockabye" debuted at number 100 on the Billboard Hot 100 during the week of 24 December 2016, becoming Clean Bandit's first entry in this chart since "Rather Be" in 2014.