Ashlee Simpson has snubbed her big sister Jessica Simpson at her wedding - well, her music at least.

The 23-year-old is currently preparing for her marriage to Fall Out Boy's Pete Wentz, but balked at the suggestion the pair would party at the reception to some of Jessica’s dities.

"No, that would be really nerdy," Ashlee sagely tells Heat Radio.

Sounds like Ashlee can’t wait to tie the knot though, The Mirror reports she missed Pete so much during her current London promotional trip she had him flown over from America.