Elbra Amanda Mansur was born in Wellington Hospital on July 5, 1991 to Assyrian refugee parents who had migrated to New Zealand in 1989 after the outbreak of the Iran-Iraq War. Elbra has been singing since the age of seven, being heavily influenced as a young girl by singer-songwriter Christina Aguilera and her debut single "Genie in a Bottle." During her early teenage years, she pursued her passion for singing and undertook singing lessons under a vocal coach. She has been on stage since the age of fourteen. Elbra attended secondary school at St Catherine's College, Wellington until 2009 before migrating to Sydney in January 2011. Elbra gave birth to her first child, Adara Melody in 2014 followed by her second child, Jacob Nathaniel in 2015. Elbra had begun performing for Assyrian-based events in Australia before pausing her career due to personal duties. 

Elbra resurfaced in September 2017, resuming her career as a singer. On December 2018, she released her debut single "Khooba Dooglana" accompanied by a music video. On 29 December 2019, Mansur released her album "Khooba Dooglana" featuring nine tracks.

On a radio interview in 2020 conducted by the Assyrian Australian Association, Elbra had stated that she has been influenced by her grandmother who composes and performs poetic prayers for her local Assyrian community in Wellington, New Zealand.

Mansur has performed for Assyrian cultural events in cities outside of Australia, including Chicago, Paris, Michigan, Toronto, Ausburg, and Wiesbaden. Elbra has collaborated with Assyrian folk/pop musicians.