Most of the shots of the large crowds were footage from One Direction concerts.
In this movie, Seal says he got the scars on his face from wolves. In real life, he got the scars from lupus, an autoimmune disease. The scientific name for wolves is "Canis lupus".
The character of Hunter the Hungry is believed to be a loose parody of the rapper Tyler the Creator.
All three of the Lonely Island members' wives make an appearance in this movie. Joanna Newsom as the purple-haired defibrillator operator, Marielle Heller as a member of Conner's documentary crew, and Liz Cackowski as the stage manager with whom Lawrence makes out. Jorma's son (drumming baby) and brother, Asa Taccone (performer before Style Boyz at the Poppies) also make an appearance.