You know, the whole time I was watching Frozen, I kept feeling like it was very Wicked-esque. I kept thinking, "This sounds so much like Wicked! Is this Idina Menzel? It sounds like Idina Menzel..." And it turns out it was Idina Menzel! And Elsa's Let it Go is basically Elphaba's Defying Gravity. Plus all the female duets going on in both. No wonder I loved Frozen cause I loved Wicked too.