The couple have asked friends to be prepared to move quickly once they receive information about the whereabouts of the extremely private celebration because they will only be given a short notice, reported Femalefirst.
"Indications are it's going to be a small, private affair with just a select few invited. Those that are going have been told to expect a call at short notice, drop everything they are doing and head to the location when revealed.
"Guests have heard rumours about the wedding being held in Hawaii or even Greece - but most expect it to be staged in California," a source said.