The event runs for 12 nights this spring and also includes a “One Piece” show in the “WaterWorld” theater Universal Fan Fest Nights, an after-hours hard-ticket event at Universal Studios Hollywood that looks to capture the spirit of Halloween Horror Nights but for a more all-ages crowd, is back this spring for 12 nights only: April 23-25; May 1-3, 7-9, and 14-16. And we’ve got the first details on what you can expect. Last year was the inaugural year for Fan Fest Nights and it included