' unit debut has been confirmed for March 10th!
So far, they've been teasing us with prologue videos and various photos, and it seems like fans can finally have a concrete date to look forward to! Woohyun and Key are both 91'ers, and they're good friends, so many are already looking forward to hearing the two of them collaborate.
After Woollim Entertainment merged with SM Entertainment last year, there was talk of a collaboration between artists from both agencies, and fans were ecstatic when the project duet we've been waiting for was officially confirmed as Key and Woohyun.
Stay tuned for more on Toheart!