Electro pop (or electropop) is pop music built primarily around synthesisers, drum machines, and vocoded or processed vocals. The term covers a wide stylistic range: from late-1970s/early-1980s synth-pop pioneers (Kraftwerk, Depeche Mode, Human League) to the 2000s commercial wave (La Roux, Goldfrapp, Robyn) and the modern hyperpop fringe (SOPHIE, Charli XCX). Tempos and structures follow pop conventions; what distinguishes electro pop from other pop is its electronic instrumentation. The genre is foundational to nearly all subsequent electronic music — house, techno, and EDM all owe debts to the synth-pop era — and the form remains central to mainstream pop production today through producers like Charli XCX and A. G. Cook.