Bikram Yoga Paris is the latest hot spot (literally) for fashion insiders in the City of Light. This form of yoga, which is practiced in a room that's heated to 100 degrees Fahrenheit, is old news in New York, but the trend is just taking hold among workout-averse Parisians (though co-director Marine Ochin assures us that the French are more exercise-prone than we think). Along with editors from Paris Vogue and Numéro, the studio, which offers daily English-language classes, has attracted an impressive list of visiting international celebrities, including Andie MacDowell, Keanu Reeves, Elle Macpherson, Madonna, and David Duchovny. Does Ochin see the trend exploding further? "Yes, we're planning more studios in Paris and possibly elsewhere in France in the near future," she told us. For more information, see www.bikramyogaparis.com.