BoA's brother's complaint about "Don't Know What to Say"

"Don't Know What to Say" that beautiful song off her 6th album "Hurricane Venus". Any hardcore BoA fan would know that the piano accompaniment in this song was actually done by the pianist Kwon SoonHwon, BoA's oldest brother.

During BoA's 6th album promotion, ETV interviewed Kwon SoonHwon in which he revealed that BoA casually asked him to play piano for a song in her upcoming album and he simply felt honored for it. The difficult part, however, was the process they recorded the song. Normally the instrument should be recorded first then the singer should sing on top of that. But BoA was too busy she recorded her singing first leaving her brother with a difficult task of playing the piano to go along with her previously recorded singing. :P