She is also one of the few Disney stars who can actually sing! She just needs more confidence in her live belts. Her lows are impressively strong, especially her Eb3s. Belts are great. The higher she goes, the better she sounds. Yes, i used a lot of live notes for Head Voice, but this is because she has not yet explored a lot in that area. I'm sure she would be able to go well beyond an E6
Lows: C#3 - G3
Belts: C5 - F5
Falsetto/HV: D5 - E6