In 2019 the duo reformed and made a few appearances, but in April 2021 Baas B returned with a solo album,[1] claiming that he and Frederiks were no longer on the same page "in terms of message".

[3] In 1997, Lange Frans was a founding member of a band alongside his brother and fellow rapper Brutus Frederiks and childhood friend Bart Zeilstra better known as Baas B.

The duo were criticized for the over-commercialization of their music by D-Men colleague Negativ and by other Dutch rappers Def P, Remi Schouwenaars and Kimo.

[6] In 2008 Lange Frans and Baas B released the single Kamervragen (English: Parliamentary Questions), in which various conspiracy theories are presented in reference to the Enschede fireworks disaster, the assassination of Pim Fortuyn, and the government construction fraud.

In response, GroenLinks MP Tofik Dibi asked actual parliamentary questions about it in the House of Representatives,[7] which Prime Minister Jan Peter Balkenende refused to answer.

[9] In the TV program Rambam in 2019, Frederiks said that his interest in conspiracy theories started in high school when he wrote a paper about the similarities between the pyramids of the Egyptians and those in Central America.

[10] On 30 November 2019, Lange Frans performed with Thierry Baudet at the party congress of the far-right Forum for Democracy with an adapted version of Het land van..., in which he sang, among other things, that he no longer trusts NOS Journaal weatherman Gerrit Hiemstra,[11] who is known for his work bringing awareness to climate change in the Netherlands.

[12] In the summer of 2020, Frederiks launched a podcast in which he mainly focuses on all kinds of conspiracy theories and invited guests who criticized the Dutch government response to the COVID-19 pandemic.

[15] On 16 October 2020, YouTube removed Lange Frans' Lockdown (Fall Cabal), a song with more than a million views which makes reference to various conspiracy theories, from the platform for violating its community guidelines.