Hikakin

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Hikaru Kaihatsu (Japanese: 開發 光, Hepburn: Kaihatsu Hikaru; born April 21, 1989), who is professionally known as Hikakin (Japanese: ヒカキン), 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. In 2021, his YouTube channel "HikakinTV" surpassed 10 million subscribers and by 2022, "HikakinTV" had accumulated more than 10 billion views. In 2023, Hikakin launched his brand Hikakin Premium (currently known as Bee), and released cup ramen, "Misokin Rich Miso Ramen" (みそきん 濃厚味噌ラーメン), and cup rice, "Misokin Rich Miso Meshi" (みそきん 濃厚味噌メシ), at 7-Eleven stores in Japan, which had sold 60 million meals in July 2026. On April 21, 2026, he launched the barley tea "Onicha" (鬼茶) and two months later, sales surpassed 7.5 million bottles. Hikakin's seven YouTube channels have more than 30 million subscribers and 25.7 billion views, and as of July 2026, his main channel, "HikakinTV", is the eighth-most-subscribed-to YouTube channel...