Just visited Arkie's link (to EB singing Mattie Groves) and found her singing Silver Dagger as well.

It also gives this info about her:
Ebony Buckle is a talented musical theatre actress. She has a bachelor degree in Music and Opera Singing from the University of Queensland in Australia and a postgraduate diploma in Musical Theatre from the Mountview Academy of Theatre Arts in London. Her musical stage performances include Les Misérables, The Marriage of Figaro and the opera A Midsummer Night's Dream.
"with a voice that could make angels weep"


Wouldn't have guessed she's an Ozzie from hearing her sing!