Hurting the family brand: Kim Kardashian upsets mother Kris by vowing to take fiancé Kris Humphries' name

By Andrea Magrath

Going against mother: Kim Kardashian plans to change her surname when she marries fiancé Kris Humphries

There seems to be a case of 'Do as I say, not as I do' in the Kardashian household.

Family matriarch Kris Jenner has spoken of her disapproval of daughter Kim taking on her fiancé Kris Humphries' surname when they marry.

Mrs Jenner says she does not want Kim to give up the name that has become a globally recognised brand - despite the fact that she also dropped Kardashian when she remarried.

'I don’t think she should take his name and be Kim Humphries,' Kris, 55, told PopEater.com.

'I think she needs to be Kim Kardashian because she’s worked so hard to get where she is.'

But Kim, 30, plans to go against her mother's wishes, according to TMZ, which reports that the reality star will 'for sure' take the basketballer's surname after she walks down the aisle this summer.

Family brand: Kris Jenner, pictured last year, has expressed her desire for Kim to keep her maiden name

While Kim is the most famous and wealthiest of the group, the Kardashians have styled themselves as a family brand - appearing together in their multiple reality series and often in various endorsement deals - although Kim takes on many solo projects as well.

Kim's younger sister Khloe now goes by Khloe Kardashian Odom since marrying husband Lamar in September 2009.

Mrs Jenner has also warned her future son-in-law that he is in for a big lifestyle change.

Engaged: Kim and Kris Humphries, pictured in Monaco on Friday, announced last week that they plan to marry

'Kris Humphries might not have known what he was getting into. This wedding is going to happen very much in the public eye. And they will make millions off of it.'

Fans can bet on the nuptials being broadcast on the E! channel - home to the family's many reality series.

Kim's younger sister Khloe, whose own wedding was watched by millions on a network special, said: 'I would assume it would be [taped]. comes with the territory. We sell our souls to E!'

According to the New York Post, the network are currently working out the best way to programme the wedding, by either weaving it into the upcoming sixth season of Keeping Up With The Kardashians, which premieres next month, or making it a special like Khloe's marriage to Lamar Odom, or even another spin-off series.

Kim has also dismissed the speculation over the ring looking identical to one she had previously worn during her relationship with Reggie Bush - and that Humphries did not pay for it.

Kris purchased the enormous 20.5 carat diamond ring, thought to be worth $2 million, from Kim's favourite jewellery Lorraine Schwartz, despite being offered free rings from other companies.

Shwartz, a friend of the Kardashian family, wrote on her Facebook page: 'Wow, how romantic. Aside from the 20.5-carat diamonds, Kris wanted to add something extra special from him in the ring.

Holiday romance: Kim and Kris jetted to Monaco for the Grand Prix after announcing the news last week

'It took him 3 days to come up with a coded message of love for Kim to be engraved in the ring - along with a K <3 K. Amazing!!'

Once the lavish wedding is over and done with, Kim and Kris say they will be wasting no time in starting a family.

'We talk about it (having kids) all the time,' she told People. 'Kris is just as close to his family as I am to mine. In the next year we want to maybe try to start a family.'