While touring with his Believe Tour throughout 2012 and 2013, Justin Bieber managed to write new songs everyday.
As executive producer, Justin enlisted previous collaborators such as Rodney Jerkins, Maejor Ali, Diplo and Sir Nolan, while working with a range of new R&B producers such as The Audibles, Andre Harris, D.K. the Punisher, Soundz, Chef Tone, T-Minus, Jason "Poo Bear" Boyd and others.