Actors Sofia Vergara and Joe Manganiello tied the knot on Sunday in a Palm Beach, Florida ceremony, according to a posting on Vergara's official Facebook page . The two have been a couple for about a year and a half, and were engaged last December on a vacation in Hawaii. Modern Family star Vergara, 43, wore a custom Zuhair Murad gown for the ceremony. Attending guests enjoyed a weekend full of activities at The Breakers Resort. At the rehearsal festivities on Saturday, Manganiello, 38, serenaded Vergara with the Guns N' Roses song "Sweet Child O' Mine."