Nicole is once, twice, three times a lady as she weds her rocker beau

Nicole Richie and Joel Madden have gone from reality star and rocker to husband and wife.

Richie's publicist Nicole Perna told the Associated Press that the 29-year-old socialite and her longtime boyfriend Madden were married on Saturday in Los Angeles.

Madden, 31, fronts the band Good Charlotte.

The couple, who have been together for more than four years, have a two-year-old daughter, Harlow Winter Kate, and a 15-month-old son, Sparrow Midnight.

Richie, whose father is pop legend Lionel, found fame costarring on TV's The Simple Life with Paris Hilton. Since then, she has been a staple in the tabloids -- and has recently taken to writing books and designing clothes.

Richie has her own fashion line, Winter Kate, and a shoe and accessories range, House of Harlow. The bride was expected to wear an elegant Marchesa gown, a dress she chose over a vintage Chanel number. Richie's former costar Paris Hilton was notably absent from the proceedings.