AKB48 made an announcement on December 8th that they will start using Google+! Today is AKB48's 6th anniversary and they made a special announcement during a press conference (which was also live streamed on YouTube). A Google+ representative also announced that they were really eager and excited to work with Akimoto Yasushi in promoting AKB48 and the social networking service to the world.
Some of the features that were announced included: live streaming of special concerts, using the video conferencing feature "Hangout" with AKB48 members, and also updates from all the members that will be added into your "Circles". With AKB48 members using Google+, messages will be translated into Chinese, Thai, Indonesian, English and Korean for easier access to fans.
During the press conference AKB48 captain, Minami Takahashi, took a photo with a smartphone and uploaded to Google+ to signal the usage of this social networking service. Atsuko Maeda also mentioned that she might try to use "Hangout" later on Google+!