 Ain't It Fun  is a song by the American rock band Paramore, released as the fourth single from their self-titled fourth studio album Paramore (2013).Produced by musician Justin Meldal-Johnsen, the song was recorded in Los Angeles. Development for it began with a keyboard loop recorded by its guitarist, Taylor York.he first song completed in Los Angeles for Paramore, Ain't It Fun was produced by musician Justin Meldal-Johnsen. Development for the song started in a hotel room, where Taylor York created an audio loop with his keyboard, which Williams likened to works by Siouxsie and the Banshees and Paula Abdul.