Two friends from school Columb Flinn, Jasraj Sahota both with a passion for music formed a duo in 2011 to take on the world in a musical adventure. Since the formation of Duplex, they have performed at O2 Academy Islington and Birmingham, Wychwood Festival, Festival on the BBC Introducing stage, Godiva Festival and Notting Hill Carnival and many more across the UK. They have supported artists such as Sigma, Jaguar Skills, Redlight, Ghetts, Fuse ODG, Meridian Dan, plus many more at various events up and down the country.

In early 2015, Duplex signed their first single All Through The Night to Fidget Music