Yoo Ye-eun, who was born blind and adopted in 2002, has never had a formal piano lesson but can play any song after just one listen.
Her display on 'Star King', a Korean talent show moved the studio audience to tears.
Moving: Clips featuring Yoo Ye-eun have taken the internet by storm
The video opens with the gifted youngster being lifted up to the piano seat by the show's host, before settling down to play.
Ye-eun's adoptive mother, Park Jung Soon, said: 'She has perfect pitch even though she has never learnt to play. We never taught her.'
In May she performed a duet of 'You Raise me Up' with seven-year-old British singer Connie Talbot, who last year starred in reality show Britain's Got Talent.