Singer Robbie Williams is all set to tie the knot with his American sweetheart Ayda Field.

The couple has planned an intimate ceremony on a romantic island off Los Angeles.

The singer, 36 – newly back with Take That – and actress Ayda, 31, are to marry on the island of Santa Catalina, 20 miles off the California coast and a favourite spot for honeymooners.

Robbie and his bride-to-be told family and close friends of the date only last week.

The other members of the reformed Take That are all believed to be on long-standing holidays and so will not be attending.

Guests have been told to assemble tomorrow morning at a small port.

From there they will be ferried to Santa Catalina.

“Robbie and Ayda have been deeply in love for a long time now. They spend almost every waking minute of every day together and are completely inseparable,” the Sun quoted a source as saying.

“They have tried to keep the guest list for the wedding as small as possible and have revealed only scant detail of the ceremony to the lucky few who are invited,” the source added.

The couple will have a two-week honeymoon before Williams arrives in the UK to promote new Take That single Shame, which is out in October