As the whole filmmaking team works overtime every day to make changes to the film, bringing more comedy and clarity to the story, preparations are underway for D23 Expo. Disney's biggest fan event, D23 Expo is always home to big announcements and showstopping performances. It is here that, even though film is still not finished, an audience of over 7,000 people will first see the final version of "Into the Unknown," meet new Frozen 2 cast members Sterling K. Brown and Evan Rachel Wood, and see Kristen Bell, Idina Menzel, Josh Gad and Jonathan Groff sing together for the first time "Some Things Never Change." Directors Jennifer Lee and Chris Buck and producer Peter Del Vecho interact with Frozen fans and cosplayers. At Disney Animation, Lee and Buck collaborate with the talented artists in visual development, animation, effects, technical animation and lighting on what they hope will be an iconic dress transformation for Elsa in "Show Yourself."