Ashlee Simpson and Evan Ross, son of legendary diva Diana Ross, tied the knot Sunday night in a private ceremony in Greenwich, CT, according to E! News.

Simpson's sister Jessica served as maid of honor, and family friend Cacee Cobb served as one of the bridesmaids.

This is the second marriage for Simpson, who was previously married to Fall Out Boy member Pete Wentz, father of her 5 1/2-year-old son Bronx Mowgli.