ROD STEWART and PENNY LANCASTER

The couple have kept details of the nuptials top secret and even close family members don't know where or when the wedding will take place.

A source tells British newspaper The Sun, "They have found this romantic Italian island retreat and will marry there mid-June. They want it to have a cosy rustic feel rather than anything too glitzy and the spot they have found is perfect.

"They're so desperate to keep the plans secret they have hardly told a soul."

The insider claims guests will be flown to the ceremony by helicopter and private jet, to keep the prying eyes of the paparazzi away from the wedding.

Source: WENN