Singer Rottyful Sky has tragically passed away from a brain tumor at the age of 25.
A representative for the K-pop star -- real name Kim Ha Nul -- confirms that that the singer was brain-dead upon admission to an intensive care unit but was declared deceased shortly after. She was diagnosed with the brain tumor last year and is said to have ceased her career activities due to the crippling condition.
Rottyful Sky made her singing debut in 2001 at the tender age of 13 under the name of Hanul, with her first album "Voice of Purity" and went on to being praised as a rising star in Korea alongside the likes of BoA. Three years later
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In 2010, she made her comeback as a solo singer/songwriter under a new name and with new single "No Way", which was accompanied by one of the world's first 3D music videos.
She later went on to receive acclaim for her song "Blue Bird" on the soundtrack the the hit drama Scent of a Woman.