The "SUMMER PARTY" is a 48 hour long stream where they're playing all of her albums, some PVs, and CMs. It's quite fun but a lot of the premium members keep kicking me out. (On Niconama / Nicolive broadcasts, if there are too many viewers, regular accounts get kicked out when premiums come in)
http://live.nicovideo.jp/watch/lv102466895
Still a little over a day left! Been going on for 13 hours and 97k comments+ posted with over 180k+ people and counting checking it out? Should go up later when people get home in Japan~