20th Century Fox Animation and Blue Sky Studios have set its voice cast for Epic, the new 3D CG-animated film by the makers of Ice Age and Rio.

The film, which had been developed under the title Leafmen, will star Beyonce Knowles as Queen Tara, Colin Farrell as Ronin, The Hunger Games‘ Josh Hutcherson as Nod, Amanda Seyfried as Mary Katherine, Johnny Knoxville as Mandrake, Aziz Ansari as Mub, rapper Pitbull as Bufo, Jason Sudeikis as Bomba, and AEROSMITH and American Idol frontman Steven Tyler as Nim Galuu.

Blake Anderson and Judah Friedlander are also in the cast.