Watch on Soap2day. Kizuna AI is known as the world's first and most popular Virtual Youtuber, and now she headlines her first concert: a two-day event titled "hello, world." Held during December 2018 in Tokyo and Osaka, it was put together by AI and the producers behind the nine singles she had released over nine consecutive weeks. With over 37,000 passionate fans in attendance, this concert is considered "the beginning of a new legend." A truly stunning and unique experience you cannot miss!