Cosima De Vito (born 1 November 1976), also known as Cosima, is an Australian pop and R&B singer-songwriter. Born and raised in Perth, Western Australia, she is best known for her cover of the classic Australian hit "When the War Is Over" (2004) which reached No. 1 on the ARIA Singles Chart. Her passion and love for the music industry stemmed from her influential grandfather, who was a gifted Italian tenor. From a young age, Cosima has performed, winning her first talent quest at the young age of 9. In 2003 Cosima appeared on the first season of Australian Idol. After reaching the semi-finals, Cosima had to withdraw from the series due to throat nodules.