Brains, brawn and – though they would deny it – a fractionally kinked eyebrow all contribute to French duo Justice's considerable appeal. Their 2007 debut combined Daft Punk-style sci-fi house with the muscular riffing of the Prodigy. Four years on and they have made a witty, hooky dance record in thrall to the rock operatics of Led Zeppelin and Queen. Synth lines make like double-necked guitars ("Helix"), processed beats imitate stadium handclaps ("Parade"), and if it's hard to take seriously at times - "Canon (Interlude)" sounds like the work of an electronic medieval troupe – its pounding momentum is harder still to resist.