Dame Nellie Melba, also known as Helen Porter Mitchell, was an Australian opera soprano and one of the world's most famous singers in the late 19th and early 20th centuries. She was known for her beautiful voice, dramatic range, and her unique ability to interpret and emote through her music. Some synonyms for Dame Nellie Melba include opera diva, singing sensation, soprano maestro, vocal virtuoso, and classical music icon. Despite her untimely death in 1931, Dame Nellie Melba's legacy continues to inspire generations of musicians and music lovers around the world today.