Local News Successful Celebrity Clothing Lines June 11, 2012 / 5:45 PM PDT / CBS News (credit: Frederick M. Brown/Getty Images) Gwen Stefani - L.A.M.B. (credit: Imeh Akpanudosen/Getty Images) Mary-Kate and Ashley Olson - The Row (credit: Stephen Lovekin/Getty Images) Victoria Beckham - The Victoria Beckham Collection (Photo by Rob Kim/Getty Images) Kimora Lee - Baby Phat (credit: Frazer Harrison/Getty Images) P. Diddy - Sean John (Photo: VALERY HACHE/AFP/GettyImages) Sienna Miller - Twenty8Twelve (credit: Ben Pruchnie/Getty Images) Nicole Richie - House of Harlow 1960 (Photo by Marianna Massey/Getty Images) Beyonce - House of Dereon (credit: Beyonce Knowles/Getty Images) Justin Timberlake - William Rast (credit: Kevin Winter/Getty Images)