Restart slideshow

10 Most Memorable Fashion Moments of 2011

4. Missoni for Target

What do you get when you combine the coolness of Missoni with the affordability of Target? Sheer mayhem. By the time the collaboration hit stores and the Internet, shoppers stampeded, the site crashed, and many orders placed online were canceled. Let's hope next year's Jason Wu for Target collection goes a bit more smoothly. The year's other notable collaborations included Versace for H&M and Karl Lagerfeld for Macy's.