PERSONALITY
Zhao is not only the Ultimate Singer, but a world famous actress and acclaimed dancer. She's friendly and easy going, not letting the success effect her compassion towards others. She can be compulsive, however, struggling to think about the future and making choices based on greed and in the moment happiness.
Full bio here
VOICE
Zhao's voice is medium to high pitched, speaking with a "refined", elegant, feminine voice. She'd sound naturally bubbly, though sounds more confused during awkward/uncomfortable situations where that bubbly sound clashes with whatever's happening.
Being the Ultimate Singer, she does have lines where she sings but I don't think I'll ask for any lines that require singing, that seems like a lot to ask for. If you are also a singer, though, be sure to say!
A voice reference for Zhao would be Miss Spink from Coraline, voiced by Jennifer Saunders. She has that refined, positive voice I imagine for Zhao, though Zhao would probably be a bit more high pitched and sound younger, seeing as she's only 28.
https://youtu.be/W13wkM25xm8?t=108
Zhao is from China, so a Chinese accent would be nice but is absolutely not required.
PRONUNCIATION
https://translate.google.com/?sl=en&tl=zh-CN&text=Zhao&op=translate
https://www.howtopronounce.com/ying