Singer/actress Vanessa Williams donned a wedding gown for a late night ceremony on Wednesday (26Sep07) - but she isn't tying the knot again. The twice-wed Ugly Betty star stepped out with ex-husband Rick Fox to film a top secret wedding scene for the show. Set insiders were tight-lipped about the plot of the wedding scene and refused to disclose if Williams actually weds her ex, who plays her love interest in the new season of Ugly Betty.