With Son Dongwoon's solo debut ahead in Japan, it was revealed that Ayaka composed a new track for his album.

"Ayaka's new track will be included in Son Dongwoon's solo mini album 'Kimishika.' This is the first time Ayaka composed a track for a Korean artist," read a statement from Nikkan Sports last Thursday posted to the Korean news website OSEN.

Nikkan Sports also reported that Son Dongwoon always expressed his desire to cover Ayaka's tracks as a big fan, and she happily accepted his wish and composed a track for him. Ayaka also exaplained that she did her best to compose a track that Son Dongwoon's fans would like.

Ayaka is a Japanese artist who debuted in 2006 with a track titled "I Believe," which became popular as the opening track for the Japanese drama Rondo.

"Kimishika" will go on sale on July 1 in Japan.