Leftfield is a British duo that formed in London in 1990. They gained popularity in the 1990s with their live performances, which often featured guest artists such as Adam Wren, Nick Rapaccioli, Mc Cheshire Cat, and Djum Djum. After disbanding in 2002, founding member Neil Barnes revived Leftfield in 2010 for a live tour and DJ performances. He collaborated with old companions Adam Wren, Cheshire Cat, Djum Djum, and Earl Sixteen. Since then, Leftfield has released two albums: Alternative Light Source (2015) and This Is What We Do (2022).