Kim Kardashian will make her cake look like the one at Kate Middleton and Prince William's wedding, according to reports.

A source told that Kim Kardashian wants to do things big for her Aug. 20 wedding to NBA player Kris Humphries, and has chosen her cake to look specifically like the multi-layer cake at the Royal Wedding.

The couple was seen shopping for wedding cakes in Los Angeles last week and on Thursday, it was revealed that Kim opted for a Royal Wedding cake loo-alike with cream and white piping.

The cake is said to cost between $15,000 and $20,000, according to