The Frozen juggernaut continues, as Walt Disney Animation Studio announces Frozen Fever, a short film welcoming back to the big screen Anna, Elsa, Kristoff and, of course, the one-and-only Olaf. Directed by Jennifer Lee and Chris Buck, and produced by Peter Del Vecho, with an all-new original song by Robert Lopez and Kristen Anderson-Lopez, Frozen Fever marks the first project reuniting the Oscar-winning original team from Disney’s Frozen. Kristen Bell, Idina Menzel, Jonathan Groff and Josh Gad are also expected to return to voice their characters. The announcement was first made within the ABC Television Network special The Story of Frozen: Making an Animated Classic, which aired September 2.