Karl Lagerfeld’s hard at work on this year’s Pirelli calendar.

He’s ditched the beach for a Paris studio. Sam McKnight, Peter Philips and stylist George Cortina are on set with the usual gaggle of girls including usual faces including Heidi Mount, Natasha Poly, Iris, Lara and Magdalena.

Isabeli Fontana tweeted a picture that was removed within minutes and word is Karl’s demanded the strictest secrecy. She and the girls will be joined by at least three or four male models.

The calendar won’t be revealed until November, in Moscow, but in between now and then Karl’s planning to make a short movie starring Heidi Mount and Chanel’s cruise collection in St. Tropez.