Rufus Wainwright wed theater producer Jorn Weisbrodt at his home in Montauk yesterday. The son of singers Loudon Wainwright III and the late Kate McGarrigle exchanged vows in front of 250 guests including Yoko Ono, Carrie Fisher, Lou Reed, Laurie Anderson, Julianne Moore, Mark Ronson, jewelry designer Ann Dexter-Jones, artist Cindy Sherman and Ingrid Sischy. The party then moved to the Clam Bar in Napeague, where each guest was given a jar of local plum jam inscribed with “Rufus+Jorn’s Hochzeit,” and dined on local steamers and cherry tomatoes, lobster rolls and clam chowder, with speeches by Marina Abramovic and Irving Benson.