Olivia Wise 's recording of ' Roar ' became a viral online hit in October . The 16-year - old was diagnosed last year with terminal brain cancer . The only time she sang ` ` She died peacefully in her sleep '' Monday , her family calls . The family plays another song by Olivia called ` ` Simple ' ''
Olivia Wise 's recording of ' Roar ' became a viral online hit in October . The 16-year - old was diagnosed last year with terminal brain cancer . ` ` She died peacefully in her sleep '' Monday , her family calls . The family plays another song by Olivia called ` ` Simple ' ''