Hikaru Kaihatsu, who is professionally known as Hikakin, is a Japanese YouTuber, beatboxer, and businessman. He co-founded and is supreme advisor of the Japanese multi-channel network Uuum. He also established, and serves as co-CEO and Chief creative officer of the company Bee. Hikakin is also a member of the Japanese music group Hikakin & Seikin. His popularity on YouTube and extensive media coverage have made him one of Japan's most-prominent online personalities and content creators. Hikakin was born and raised in Myōkō City, Niigata Prefecture. He opened his YouTube channel "Hikakin" in 2006, posting mainly beatboxing videos. In 2010, he posted "Super Mario Beatbox", a beatbox medley of music from Super Mario Bros., which gained over a million views in one week. In 2012, he quit his supermarket to focus on his YouTube channel. In 2015, he began producing music, including the "YouTube Theme Song", which he co-wrote with his brother Seikin, and in November of the same year, his channel "HikakinTV" exceeded 2.57 million subscribers, making it the most-subscribed-to YouTube channel in Japan. From Wikipedia (https://en.wikipedia.org/wiki/Hikakin) under Creative Commons Attribution CC-BY-SA 3.0 (http://creativecommons.org/licenses/b...)