Kim Kardashian either cut her long, brunette locks or took out some hair extensions because the "Keeping Up With the Kardashians" star stepped out recently in a tight, red Alexander McQueen dress and collarbone-length hair.

The reality star debuted blonde hair over the summer but changed it back to brunette a few months ago. The 33-year-old is currently in the middle of planning her summer wedding to Kanye West. After getting engaged in October, the couple is planning to tie-the-knot in Paris on May 24.

According to Radar Online, guests who attend the wedding ceremony will have to sign a confidentiality agreement which states that they cannot discuss any wedding details to the media. Also cell phones will be banned and will be seized if someone is caught with it out.

A source told Radar that West and Kardashian don't want any leaked footage of the wedding popping up on the Internet.

"Guests will have to go through extensive security, even most of Kim and Kanye's celebrity friends," the source said. "Mobile devices will be held at a secure location and if someone needs to use during the festivals, accommodations will be made, but a long way away from the festivities. This is all designed to discourage guests from using their phones."

If a person violates the terms in the agreement, the source said the couple will most likely sue.  

"Kim and Kanye will be licensing the wedding photos for sale and it will also be broadcast on E! as part of their 'Keeping Up With the Kardashians' series," the source continued.

Radar also said that the two have finally worked out the details of their prenup. For every year Kardashian is married to the rapper, she will get $1 million, capped at $10 million.

Her name will also be on the title of their Bel Air, Calif. mansion even though West is reportedly paying for most of it. In the event of a divorce, she will also get to keep all jewelry and gifts given to her by the rapper.