John Galliano let slip that Karlie Kloss is his girl for Spring 2010. She won't front Galliano (whose ads never appear stateside), but Dior. The designer launched his eponymous "timepiece range" in Paris last night and told WWD he'd been very busy casting the spring campaign. But really, how hard can it be to cast the girl who's cast in everything? This season, Karlie's in ads for Chloé, Uniqlo, Marc Jacobs' Lola, Lacoste, Pringle of Scotland and Sportmax. She's also holding down editorials in almost every single magazine, including a grand total of four in this month's Vogue alone. So Dior's probably just the start of her spring rounds which makes one wonder a) when she goes to school and b) how it's possible to be over a girl before she's eighteen.