TheGrefg

David Cánovas Martínez (Spanish: [daˈβið ˈkanoβas maɾˈtineθ], born 24 April 1997), better known as TheGrefg or simply Grefg, is a Spanish YouTuber and Twitch streamer. With 18.2 million subscribers, he has one of the most-subscribed Spanish YouTube channels, and is among the most-followed Twitch channels with over 11.8 million followers on that platform.

TheGrefg used to hold the Guinness World Record for the most concurrent viewers for a Twitch stream, after achieving a peak concurrent viewership of 2,468,668 during the live presentation of his Fortnite outfit, on 11 January 2021. This record was broken by Ibai Llanos in 2022 when a total of 3.3 million viewers arrived during La Velada del año 2 and also in 2023 when a total of 3.4 million viewers arrived during La Velada del año 3.