PIC: Kim Kardashian Stuns in White On Her Wedding Day!

Here comes the bride!

Kim Kardashian was spotted Saturday decked out in white leaving the Four Seasons Hotel in Montecito, Calif. -- but she wasn't dolled up just yet! The bride-to-be, accompanied by her sister Kourtney, wore a white sweatsuit, oversized shades and her long brunette locks in a ponytail.

PHOTOS: Kim's best white dresses -- so far!

"I can't believe it's finally here!!!" she posted on her blogSaturday. "Thank you so much to everyone who made this day happen."

While the soon-to-be Mrs. Kris Humphries hasn't revealed all of her wedding details, she will definitely be wearing a custom-made Vera Wang gown. "It's definitely all about the dress," she hinted to Ryan Seacrest Friday morning.

The 30-year-old reality star will also be wearing her own custom fragrance, Love by Kim Kardashian, which she created specifically for her big day. "[It] will be a keepsake I can keep for years, and I am excited to be able to share it with my fans," she told Us Weekly earlier this month.

PHOTOS: More celebs who wore Vera Wang wedding gowns

A source tells Us that the newlyweds' Cake -- a sugary confection from Hansen Cakes in L.A. - costs a whopping $15,000 to $20,000! The source says the cake will be a knockoff of Prince William and Duchess Kate's wedding cake from their April 29 wedding.

PHOTOS: Look back at the real royal wedding!

While Kim admitted to Seacrest that she was acting like a "drill sergeant" to make sure every detail went according to plan, not everything is in the brunette beauty's hands. Kris Jenner told Us last week the family has "a lot of surprises" in store for her daughter's big day.

Posted in: Celebrities