UPDATE - 22.12.2009
Did you manage to download the above video from youtube using clipnabber or similar? Because it is no longer available, I suspect copyright was claimed and the user deleted the video on his or her own. I hope you did because the HD quality was exceptional for youtube standard. If you didn't, leave me a message and I shall see what I can do click Read More, scroll to the bottom of this post (not page!) and find out where to get a really clear nice HD copy of this performance.
I decided on a new post for this since the Hatsukoi post is getting way too crowded. This was broadcast on 19.12.2009 but look at his hair and some comments, this may have been recorded weeks ago. What more can I say? So very happy someone actually posted this! Download it before it gets banned (if ever)!! I recommend the MP4 version, clearer. Thanks to izumisano of Masha Heart and MashaPlus Info Forums for the golden discovery and a great big thanks to hid7765, the uploader! For the translated lyrics check out Hatsukoi in the song list and find the post titled Hatsukoi. You will find this song in his album, Hatsukoi.
Click Read More for the screencaps.