She overheard a phone conversation in which Walt Disney was asking her father, Guido, if he knew of any suitable voices for Snow White. She then approached him, suggesting herself for the role. After auditioning for the part in September 1934, she was offered the part and accepted it.
However after Snow White she never been featured in any show or movie. Due to signing a contract with Disney. That she'll only use her voice on Snow White. Even more worse she was paid $970.