Bull has released songs on subjects such as YouTube issues, digital rights, the music industry, and gaming. Bull's actions have gained attention, specifically from the TalkTalk Group, who requested to team up with him against the Digital Economy Bill. Bull creates gaming raps, ranging with the subgenres nerdcore, political and comedy hip hop. He was briefly partnered with Machinima; however, due to a dispute he now uploads videos independently. He also recorded the theme song for popular YouTuber Nerd³, as well as making an appearance with British gaming group, The Yogscast, with the song "Kicky Kicky Flow", and InTheLittleWood rap. Bull's album Face was released in December 2011. The 12-track album includes ten brand new songs as well as the 2010 tracks "America" and "John Lennon". The album focuses on topics such as medical recovery, war, love, Asperger's syndrome, alcoholism, and pride. In 2013, Bull was featured on KSI's Football Rap Battles episode along with his friend and fellow rapper Randolph. Bull's third studio album, The Garden, was released on 31 August 2014. The album features guest appearances from Joey Gzus and long-time collaborator Beit Nun. In 2014, Bull portrayed a depiction of Jack the Ripper in an episode of the YouTube series Epic Rap Battles of History. Bull later returned to the Epic Rap Battles in 2016 performing a depiction of Winston Churchill. On 27 March 2015, he released his fourth album, Bullmatic. It is Bull's re-imagining of Nas' classic 1994 album Illmatic: for example, Nas' "N.Y. State of Mind" is re-imagined as "U.K. State of Mind". Bull also voiced Minstrel in the 2015 indie game, Volume. On 29 June 2015, Bull teamed up with Beit Nun, to release their long-awaited collaborative EP, Brandy Night. On 13 January 2017, Bull released his fifth album, Hip Hop Hooray. It features comedy songs, such as "Rugbuggery" and "Wiggly Willy" as well as serious life stories such as "I Hurt Myself" and "I'm Going to be a Daddy." On 6 January 2018, Bull sang H2ODelirious' "10 MILLION SUBSCRIBER MUSIC VIDEO", which was animated by VyronixLiam. It is uploaded on H2ODelirious' channel and Dan Bull's Spotify. On 23 March 2019, Bull released Robocopyright, a song criticizing Article 13 of the proposed Directive on Copyright in the Digital Single Market. This song also featured other YouTubers such as PewDiePie, Jacksepticeye and Roomie. The main video was released on Grandayy's YouTube channel. Dan has collabed with Dan 'Nerdcubed' Hardcastle on a number of occasions and has performed both of Hardcastle's YouTube channel intros and outros. He also wrote and performed the theme for Demma series featuring Emma Blackery.
