Famous Vocaloid producer livetune is having a special performance today (5/4 Sat) at 18:30 (Jpn time) and this program will be streamed live on YouTube in celebration of the YouTube MUSIC WEEK (in conjunction with Japan's Golden Week).
The YouTube channel is at http://www.youtube.com/user/YouTubeJapan
The G+ community can be found at https://plus.google.com/communities/117751180273487217007