Last year, Xavier de Rosnay and Gaspard Augé – the duo behind 2007's gloriously catchy "D.A.N.C.E." – began recording their second LP in Paris. "We didn't use any samples," says Augé. Instead, they layered harmony-drenched vocals over huge house beats and stadium-ready guitar riffs. "We're not, like, Steve Vai," Augé adds, "but we're just good enough."