Writer: Rami Yacoub, Carl Falk, Savan Kotecha
Composer: Rami Yacoub, Carl Falk, Savan Kotecha
Other contributors: Rami, Carl Falk, Savan Kotecha, Niall Horan, Kristoffer Fogelmark, Albin Nedler, Serban Ghenea, John Hanes, Tom Coyne