Someone must be slipping ecstasy into the water fountains of Montreal dance studios these days. There’s a strong populist streak—and plenty of streaking—in the outlandish, high-energy party-performances by artists like La La La Human Steps, Marie Chouinard, and Frérick Gravel that seems allergic to austerity. (One arch critic at the Telegraph describes the phenomenon as “crutches-and-cleavage claptrap.”) This week, Gravel brings Usually Beauty Fails, a hip-gyrating piece for three musicians and six dancers that is saturated in electronic rock and smoldering sexuality. (On the Boards, 100 W Roy St,, 8 pm, $25, Jan 23–26)