The trio will be releasing "Timeless...", which is an emotional ballad song that dreams of reuniting with a loved one. The song was actually revealed through 'S.M. ROOKIES SHOW' before NCT's debut, and once again through 'NCT.zip'.
SEE ALSO: SM confirms 'NCT China' coming soon
NCT U's next 'SM Station 2' single will be out January 12 at 6PM KST!