PICS: NICOLE RICHIE'S BABY SHOWER; BFF SUSPECTED OF LEAVING PRIVATE PHOTOS TO TABLOIDS.

On November 18th socialite, Nicole Richie and Joel Madden celebrated their impending arrival with family and friends at a Wizard of Oz-themed baby shower held at the Beverly Hills hotel. The celebration, planned by Mindy Weiss, included touches like ruby slipper centerpieces, a yellow brick road lined with candy, a live band performing tunes from the classic flick, such as Somewhere Over the Rainbow and a cake read, There's no place like having a baby at home. Guests included Paris and Nicky Hilton, Lauren Conrad and Rashida Jones. "It's nice to be supported by your friends and family. There are people here I haven't seen in so long." Richie told her guests at the event.

In lieu of extravagant gifts, Nicole and Joel asked their guests to bring along their favorite children's books to begin a library for their baby, and asked that other presents be donated to the Richie Madden Children's Foundation, their new project with the Los Angeles Free Clinic, which will provide 100 mom-to-be kits to less fortunate families in the L.A. area. Joel said, "It's a really cool way we can celebrate our child's life with something positive. And celebrate other young couples who are just starting out and will enjoy all these things that people donated."

Although a recent report yesterday said that Nicole received a boy-themed t-shirt, the couple repeated again to InStyle that they do not know the sex of their baby, and hammered that point home by serving pink, blue, and yellow martinis, as well as sending guests home with pashmina wraps in the same color combinations.

Richie is due to give birth in early January.

CONTINUE READING AND PEEP MORE PICS FROM NICOLE'S SHOWER AFTER THE JUMP!

In related news, according to the New York Daily News, Richie's on-again-and-off again BFF is suspected of leaking pictures of Nicole Richie's baby shower to a third party who is trying to sell them to the tabloids. InStyle magazine was granted exclusive coverage of the baby shower, but personal photos taken by guests with their own cameras were reportedly snapped as well. A source tells the Daily News' Gatecrasher column that guest Paris Hilton may have been behind photos on the black market for a reported $3,000 to $4,000 asking price. "All the photos that were offered had Paris right in the center of them, as the star," the insider said. "They look set up. …None of the money would have been for Paris — for her it's about the attention."