[Lazaro Hernandez, Mary-Kate Olsen, Derek Blasberg, Ashley Olsen, Jack McCollough photo via] David Beckham undies are coming to an H&M near you in February; Uncle Karl gets Amanda Harlech and Daphne Guinness to swap identities; Mary-Kate and Ashley Olsen get on their hands and knees to personally fit shoes for children in Honduras; Rachel Zoe is now a lipstick package designer and ambassador—it was a big day in fashion, let's talk about it. Here are your Friday fashion news highlights...