Home Albums Mystery Mystery (7 years) album Release day: Friday, December 02, 2016 Mystery 7 years old Artists Hyoyeon Name Hyoyeon When album released, She was 27, now 35 years old # Song Play 1 Mystery by HYOYEON Duration: 03:02 Your browser does not support the audio file player. 2 Mystery - Instrumental by HYOYEON Duration: 03:02 Your browser does not support the audio file player.