NCT member Jisung has dropped a surprise birthday cover!

Jisung recently celebrated his 20th birthday (by international age) yesterday, on February 5. To make his day even more memorable, he dropped a surprise cover of IU's 'Heart' as a special gift for fans.

Jisung shows off his soft velvety voice along with a beautiful piano work. This simple yet alluring video gives you a warm hug after a long, cold tiring day.

Check out Jisung's cover of 'Heart' below: