Nicole Richie arrives at for a court hearing at Glendale Superior Court in Glendale, California in this July 27, 2007 file photo.(Xinhua/Reuters Photo) Photo Gallery>>>

    BEIJING, Sept. 29 (Xinhuanet) -- Nicole Richie, who gave birth to a baby just two weeks ago, has already dropped baby weight overnight.

    The 28 year old star stepped out with her boyfriend Joel Madden to watch Selena Gomez's first show on Saturday at The Roxy in West Hollywood on Friday.

   She looked as slender as ever in sky-high heeled sandals and black silk playsuit.

   She gave birth on September 9th to a baby, who they have named Sparrow James Midnight Madden. The couple also has a 19-month-old daughter named Harlow.

   Katherine Heigl, Grey's Anatomy star, would probably like to know how Nicole is so slender after giving birth so recently.

    The 30-year-old said she would love to be superslim but doesn't believe in starving herself.

    "I hate dieting," the star said.

   "My own insecurity makes me want to look like Nicole Richie. But I'm 5ft 9ins, and have substantial breasts, hips and everything else, so it's never going to happen."

    (Agencies)