Kate sings the following songs:
Doin' What We Do
Sun in My Universe
Bigger Than Love
Smoke and Imagination
21st Century Lullaby
Ticket to Ride
Fallen' for Nothing
Love Me Gone
Song for Adam
Kate Higgins does certain voices in the following video games (VG):
Naruto: Clash of Ninja - Does voice of Sakura Haruno
Naruto: Ultimate Ninja - Does voice of Sakura Haruno
Wild ARMs: The Fourth Detonator - Does the voice of Yulie
Everquest - Does various charcter voices
Destroy All Humans! - Voices the Rural Female.
If she had to choose she would be the voice of Sasuke, if she was a guy. This info was found in May issue of Shonen Jump (2006).
Voice of Miya Igarashi in Here is Greenwood.
She is also a pianist along with being an actor.
Voice for additional voices Sentou yousei yukikaze (V)