Related Information for Cassi Hilbers Cassi Hilbers is 12 years old and lives on the beautiful Sunshine Coast in Queensland, Australia. Cassi is a singer/songwriter and plays a variety of instruments including guitar, bass, piano & mandolin.Cassi started singing as soon as she could talk, but it was not until she was 8 years old, when she moved across the country to Queensland from Western Australia, that she started taking singing lessons. Cassi quickly became interested in the songwriting side of things, as she found.. read more