Cynthia talks about her Oscar nomination for 'Wicked,' Jimmy's son Billy having 'perfect pitch,' people coming up to her and doing the war cry she did in the movie, making Elphaba's songs her own, the movie being split into two parts, plus she answers Wicked questions from kids and sings Happy Birthday to Guillermo! Watch 'Jimmy Kimmel Live!' WEEKNIGHTS 11:35/10:35c on ABC. Stream on Hulu.