Reality star Kim Kardashian is planning not just one, but two wedding celebrations with her fiancé, Kris Humphries. The main event takes place tomorrow, at the $30 million California mansion of Kleiner Perkins Caufield & Byers co-founder Frank Caufield. Kim is expected to wear a $30,000 gown created by designer Vera Wang. Guests have been asked to wear black and white, while the bridesmaids will wear different shades of green. Included among the 500 guests at Saturday’s wedding are Jennifer Lopez, Ciara, Demi Lovato and Babyface. Security for the wedding will be tight, and most of the festivities will take place indoors, because the Kardashians don’t want any footage of the wedding revealed until it airs on their TV special. Kris and Kim will not enjoy a honeymoon until next summer, due to her busy schedule, but ten days after the wedding, they will host a lavish second ceremony in New York City.