This year, Hugo Boss and Vivienne Westwood presented their collections at Mercedes-Benz Fashion Week in Berlin. In January, Zac Posen will join them. The 27-year old style star will bring his Spring '08 collection (which you already saw in New York) to Germany, just weeks before he presents his Fall '08 line in New York. The trip might be exhausting, but it could also be a great investment: In recent years, the Berlin art scene has exploded, bringing rock stars and fashion designers back into the city for vacations and collaborations, and paving the way for a new creative and retail community - sort of like London in the '90s. If Zac lays down some Berlin roots now, he could attract a new group of acolytes that could help grow his brand abroad - not that Mr. Posen needs much help in the sales or PR department... Zac is joined in Berlin by Wolfgang Joop, who is reprising his Spring '08 collection for the Berlin crowd - it was first shown in Paris last October.