TOM AND KATIE ARE ALREADY MARRIED!

By JOHN SOUTH

Tom Cruise and Katie Holmes have been hiding an incredible secret from the world — they married in a special Church Of Scientology wedding aboard the religious order's luxury yacht.

The National Enquirer can exclusively reveal that they exchanged vows in a brief 30-minute ceremony in the Caribbean last July — just four months after they met.

The wedding was attended by Tom's Scientology pals John Travolta and Kirstie Alley and Katie's "minder" Jessica Rodriguez. Katie, 27, wore a beautiful flowing white dress for the secret nuptials.

Pick up this week's issue of The National Enquirer for the full story!