AceShowbiz -

Rod Stewart and model girlfriend Penny Lancaster made it official for them as husband and wife Saturday June 16th in a low-key wedding ceremony took place in a villa on the Italian Riviera.

The British rock star and Lancaster invited only a few friends and family, with Lancaster's parents served as witnesses. "It was just a family thing," one of Stewart's bodyguards confirmed.

"The couple exchanged vows in the presence of 100 family and friends," said publicist for Stewart's label, J Records. "Dinner, dancing, and fireworks lasted until the early hours." No further details being released on the wedding, except that the bride wore a white satin dress, while the groom kept it casual in blue pants and a white jacket.

After the wedding the couple walked from the villa to a nearby restaurant to see their 19-month-old son, Alastair Wallace. They then strolled on to the harbor where they posed for photographs in a small boat before sailing to Stewart's luxury yacht "The Lady Ann Magee." The newlyweds will remain in the Mediterranean for the honeymoon.

This is the first marriage for Lancaster and is the third for Stewart. Both of them have been together since his split from second wife Rachel Hunter in 1998. They became engaged atop the Eiffel Tower in March 2005, four months after Alastair's birth.