(Cover) - EN Showbiz - Kim Kardashian is feeling anxious about her wedding vows, it has been reported.

The TV star is due to marry her fianc Kris Humphries on Saturday and decided she wanted to write her own vows. However, the process has proved stressful, with Kim spending hours making sure they are perfect.

"The one thing that was making her anxious was her vows," an insider told America's OK! magazine. "She wanted them to be just right and wrote them herself. Kim also had a hard time deciding what song to use for their first dance."

Kim will wear a bespoke Vera Wang gown when she walks down the aisle in Montecito, California, this weekend. The dress has been shrouded in mystery, but Kim's wedding planner Sharon Sacks claims the 30-year-old's outfit will inspire brides all over the world.

"This will be the royal wedding of the century," Sharon gushed. "Wait and see. It will set the trends for the brides-to-be."

Kim's mom Kris Jenner has also been closely involved with planning the wedding. She can't wait to hear Kim and Kris make their marriage vows to each other.

"The actual I do's' are the moment that all of our hard work and all of her love and everything culminates into this one beautiful moment," Kris smiled. (C) Cover Media