Motoaki Tanigo (谷郷元昭, Tanigo Motoaki, born December 10, 1973), known affectionately as YAGOO is a Co-founder and current CEO of COVER Corporation the parent company of Hololive Production.

After graduating from Keio University's Faculty of Science and Technology, he worked at Imagineer Corporation, where he was in charge of producing a game in partnership with Sanrio Co., Ltd.

On 13 June 2016 he founded Cover Corporation which at first focused on AR and VR software.

He is currently the CEO of Cover Corp. which manages Hololive and Holostars but he himself is also working as "best girl", RGB-self-defense-shield and as a hoodie / stuffed animal model.