Lionrock has been played on NTS in shows including Circle Packing w/ Occo, featured first on 10 August 2014. Songs played include Packet Of Peace (No More Fucking Trumpets), As Dawn Approaches and Packet Of Peace (Jeff Mills Werk Mix).

Lionrock was a house and big beat music project created by DJ and record producer Justin Robertson, born on 11 June 1968. Robertson began his career as a DJ in Manchester during the early 1990s, playing at influential clubs such as Spice and Most Excellent, which were important in the development of the dance music movement. The Chemical Brothers, who were students in Manchester at the time, have cited Robertson as a mentor. His Rebellious Jukebox club also played a role in shaping the mid-1990s trend of blending different musical styles.

Throughout the 1990s, Robertson performed under various names, with Lionrock being the most well-known. Lionrock achieved several Top 40 hits, including "Rudeboy Rock" and "Packet Of Peace," and appeared on the television programme Top Of The Pops. Songs from the Lionrock albums "Instinct For Detection" and "City Delirious" were featured in the films "Go" and "City Of Industry." Lionrock shared stages with a range of artists such as Death In Vegas, The Chemical Brothers, and the Cocteau Twins.

In 2001, Robertson began releasing music under his own name, producing house and techno tracks like "Have Mercy" on the Bugged Out label. That year he also released the project "Justin Robertson presents Revtone," which combined elements of primitive house and new wave disco. Originally released on Nuphonic, the project’s best tracks were reissued by Bugged Out. The single "Love Movement," remixed by Ulrich Schnauss—who credited Robertson's early work as an influence—was named the second best single of 2003 by Jockey Slut magazine. Other artists such as Black Strobe, Chicken Lips, and Kiki also created remixes of Revtone tracks. A follow-up to Revtone was planned for 2007, with Robertson collaborating with Mark Ralph.

Robertson, who has long been interested in a range of musical styles, also began recording and singing with a guitar. He has written songs since school and played electric guitar in Lionrock. The 2004 release "Twisted and Torn," on the Slut Smalls label, reflected his appreciation for singer-songwriters like Neil Young and Nick Drake. In the same year, he co-wrote the song "Yes It Is" with Tim Burgess and Rob Playford; it became popular on Sean Rowley’s BBC London show and was released on Robertson’s Blister Ballads 7” label in 2006.

Known for both his reggae collection and electronic music, Robertson contributed to Wall of Sound’s Two Culture Clash album project. In 2005, he recorded the lovers rock track "Save Me" at Gee Jam studios in Jamaica, featuring guitarist Ernest Ranglin and vocalist Nadine Sutherland. As a DJ, Robertson has performed a mix of techno and electronic house at clubs worldwide, including The Loft in Barcelona, Pacha in Buenos Aires, Bugged Out in Manchester, Shine in Belfast, Chibuku in Liverpool, Together at Turnmills in London, and various venues across Europe and beyond.