Kristin Cavallari won't be inviting her former 'The Hills' co-stars to her upcoming wedding.

The 24-year-old reality TV star - who is set to marry NFL player Jay Culter next spring - has revealed the impending nuptials will not be attended by any of her cast mates, including 'enemy' Lauren Conrad, because she doesn't talk to them "on a regular basis".

She said: "I just don't talk to these people on a regular basis. So no, they won't be coming."

The blonde beauty - who first introduced 'The Hills' couple Spencer Pratt and Heidi Montag - also joked the only way Heidi will be attending is if she is "the entertainment".

Kristin added to Ryan Seacrest on his KIIS-FM radio show: "She could be the entertainment. No, I'm just kidding."

Also snubbed from the guest list will be ex-boyfriends Brody Jenner and Justin 'Bobby' Brescia, as well as Whitney Port and Lauren 'Lo' Bosworth, while High School sweetheart Stephen Colletti - the original source of Kristin's feud with Lauren Conrad - Audrina Patridge and Stephanie Pratt will be in attendance.

Speaking about Brody, she said: "We dated like six years ago. Our relationship on the show was fake. If I told Jay, 'Oh Brody's coming', he'd be like, 'No'."

The 'Hills' star also admitted she is being "extra careful" about her upcoming nuptials.

Kristin explained: "I know I'm young and I know it's happening quickly, but it just really does feel right. My parents are divorced, so I'm extra careful about it."