Ciara & Russell Wilson: Countdown to British Wedding!!!

Ciara and Russell Wilson will be married by the weekend, TMZ has learned.

The couple is in England with 100 of their close friends, along with family for the nuptials ... sources tell us.

The pic shows Ciara and Russell on their way to a pre-wedding dinner with the group ... Ciara wearing white.

We're told Ciara had a bachelorette party in Vegas 2 weeks ago.

We're told the actual wedding will go down in a day or 2 with a castle-like backdrop.

So long, celibacy.