As the countdown to the Simpson/Wentz kicks into overdrive today, more and more wedding details are being leaked to the press.

And this one’s a doozy: Ashlee and Pete have decided to ditch that whole “white wedding” thing and go dark, telling their guests “to dress in dark colours” for their weekend nuptials.

A pal revealed earlier today: “[Guests] have been asked to wear cocktail attire, but to not be overdressed.”

The guests, who still don’t know where the wedding is to take place, have not been given invites. “Proper invites have not been sent out but instead guests have been given a save the date notice,” said a source.

However, with delivery trucks and workmen turning up at the Simpson resident in Encino daily, it makes it a little hard to keep the location secret. Crews have erected massive white tents with bright red curtains in the Simpson family’s California backyard, and have also set up a seating area which surrounds a fireplace and a cross.

Around “250 guests” are rumoured to be attending the Saturday nuptials, including Jessica Simpson’s latest ex, Dallas Cowboys quarterback, Tony Romo.

[Source]