Acid Brass was a musical collaboration between Turner-Prize-winning artist Jeremy Deller and The Williams Fairey Brass Band. The project was based on fusing the music of a traditional brass band with acid house and Detroit techno. Acid Brass began in 1997 as a collaboration between Deller and the Stockport-based Fairey Brass Band. Deller saw a connection between the two apparently disparate genres, viewing them as "two authentic forms of folk art rooted in specific communities". The music has since been taken all over the world, and was performed by the Fairey Band before a London crowd of 25000 in July 2005. In 1997, The KLF co-founder Bill Drummond heard Acid Brass performing The KLF's "What Time Is Love?" as part of their encore. Consequently, Acid Brass collaborated with The KLF on a track titled "Fuck the Millennium", incorporating Acid Brass' cover of "What Time Is Love?". The track was released as a single under the moniker 2K. As of 2009, the Fairey Brass Band still play Acid Brass sets occasionally.
