Caroline Ailin is a Norwegian singer and songwriter based in London. She co-wrote New Rules, a single by Dua Lipa which reached number 1 on the UK Singles Chart and US pop radio in 2017. She has also worked with a variety of other acts including, Zedd, Katy Perry, Clean Bandit, Ellie Goulding, Ella Mai, Louis the Child, MØ, and numerous others.