Datarock hardly lack for energy under any circumstances, but Mixed Up pushes the Norwegian duo's sound deep into the red with a collection of high-energy remixes of songs taken from their albums Datarock Datarock and Red. Riton's "Turbo Disco Remix" of "Fa-Fa-Fa" turns house music into an Olympic endurance test, and reworks from Kissy Sell Out, Villains and others focus on buzzing electro overload while retaining at least a glimmer of Datarock's nimble spirit; even the normally laid-back Bjorn Torske doubles down on a mix that sounds like Grace Jones on 45.