Kim Kardashian‘s upcoming wedding is getting to be just as popular as the Royal Wedding!

In fact, we hear Kim, with a guest list that so far totals over 1,000 people, wants to OUT-DO William and Kate’s $60 million wedding that was watched by millions all over the world.

“Kim is obsessed with the royal wedding and loves Kate and her style,” a source said. “She wants her wedding to be as big and grand as that – if not more so. She’s dreamed of her wedding day since she was a little girl and she wants to share it will all her friends, family and fans. No expense will be spared.”

Star Magazine reports:

While some have speculated that the price tag for the blowout event [Kim’s wedding] will be around $10 million, that staggering number has already doubled, Star has learned. And insiders expect the $20 million to continue ballooning as the big day, which is reportedly Oct. 31, approaches… (By comparison, Prince William and Kate Middleton’s April wedding cost about $60 million.)

The couple will have a jaw-dropping number of loved ones on hand to help them celebrate. “There’s no location yet, but Kim is already inviting at least 1,000, and the list is getting longer,” says an insider. “The original idea was to have a wedding on each coast, but now she wants one huge wedding….”

Every element of Kris, 26, and Kim’s extravaganza will be fit for royalty. When she leaves for the ceremony, she wants everyone watching her as she waves,” says the insider. “Just like William and Kate!”

We have a strong feeling Kim will get exactly what she wants, and E! will foot the entire bill and plan some extravagant TV special to go along with it. Watch.