Julia Restoin-Roitfeld and Byrdie Bell

The faces behind Paris' Le Baron nightclub + a new Russian fashion initiative (Cycles and Seasons) + music by Mark Ronson = very well dressed debauchery. Former mag editor Anna Dyulgerova brought the party scene to an abandoned Moscow mansion, jazzed up with disco balls and at least one dance-off.

Le Baron's André Saraiva, Visionaire's Cecilia Dean

The New York Times' Horacio Silva, Le Baron's Tolga

Miroslava Duma and Natasha Goldenberg; Mark Ronson and Benjamin Moreau