I have no idea when it will be airing, but here is two wonderful fancams taken by 그아이닷컴(rmdkdl.com)
I'm really happy for that he sang Rainy heart live before he finish his promotion for Let It go album.
At least we saw it once. ^^
I was told he took a music video for Rainy heart.
I can't wait to see it.
Please give a proper credit when you repost it.
Video credit : 그아이닷컴(rmdkdl.com)
And this song is HOT's blessing.