Comedian and Father of the Bride Steve Martin wed Saturday in a private ceremony at his Los Angeles mansion to long time girlfriend Ann Stringfield.

The surprise ceremony, which had not been announced beforehand to the approximately 75 guests in attendance, was presided over by Bob Kerrey, the former Nebraska Senator and attempted 1992 Democratic presidential candidate – and a friend of Martin’s, publicist Alan Nierob tells the Associated Press.

The guests, who included Tom Hanks, Diane Keaton, Eugene Levy, Carl Reiner and magician Ricky Jay, had simply been told they were invited to the Martin home a “party,” according to the publicist.

It is the second marriage for Martin and first for Stringfield.  The two had dated for three years prior.