The Sisters Of Invention are a girl group from Adelaide
They all have learning disabilities but they also all have fantastic voices
They write all their own music from personal experiences, including the time a teacher told Annika's parents she would never be able to learn
The catchy alternative tune, This Isn't Disneyland, aims to show how people with disabilities aren't 'novelties'
The band's producer Michael Ross says the girls sing 'gutsy, blatantly honest, emotionally mature songs' and they sing them 'beautifully'