Jeff Vespa, WireImage
David, 44, looked sharp in a black tux, while Cathy, a socialite and nightclub manager, wore a knee-length white dress and a romantic up-do. During their walk down the aisle, the couple was joined by their two children, Tim, 8, and Angie, 5.
In addition to his anniversary celebration, the "Without You" creator was also working -- he had gigs on the party island in the days leading up to the nuptials.
Congratulations, David and Cathy!