Tobias John "Tobi" Brown (born 8 April 1993), better known as TBJZL, is an English YouTuber, streamer, and influencer.

Tobias John Brown was born on 8 April 1993 in Hackney, London, to a working-class family of Nigerian heritage.

Since 2014, the group has consisted of seven British YouTubers: Vik Barn (Vikkstar123), Josh Bradley (Zerkaa), Harry Lewis (W2S), Simon Minter (Miniminter), JJ Olatunji (KSI), Ethan Payne (Behzinga), and Tobi Brown (TBJZL).

[9] The group produces online videos, consisting of challenges, sketches, and video-game commentary, as well as selling exclusive Sidemen merchandise.

[12][13] Brown released his debut single, "Destined for Greatness", with his brother Manny featuring his sister Janellé on 7 February 2020.

[22] On 5 December 2022, Brown, KSI, and Vikkstar123 released a Christmas-themed single titled "Christmas Drillings" under the Sidemen banner featuring British rapper Jme, which charted at number 3 in the UK.

and plays Sunday league football for Under The Radar FC, a team formed by his brother and fellow YouTuber Manny Brown.