Shiny, sparkling, blinged-out: Slick electro-pop and disco revivalists Goldfrapp absolutely bedazzled us on Saturday. Talk about the perfect mix of wind machines and ’70s sexiness. With new album Head First, the duo clearly hasn’t lost its melodic luster or surreal grooves. The packed Fox was ready to dance, and Goldfrapp delivered. Did I mention the high levels of shiny spandex? Yea, that was hella hot.