After Woolim merging into SM Entertainment last year, it was announced that good friend Key and Woohyun would be working on a project duet together. Now, the title track “Toheart” has been revealed, along with a fun video teaser. In the video teaser, Key and Woohyun play with fireworks in a brightly light old fashioned diner. Although not much else is revealed, knowing these two, it’s going to be a catchy and fun song.
Check out the prologue video!