Nicole Richie ties the knot?

Los Angeles: Socialite Nicole Richie and her long time partner `Good Charlotte` rocker Joel Madden have reportedly got married.The couple - who celebrated the birth of their second child, son Sparrow, last month - are rumoured to have secretly tied the knot in an intimate service on Wednesday after obtaining a marriage licence last week, Radaronline reported.

A spokesperson for the couple - who also have a 21-month-old daughter Harlow - is yet to comment on the reports but further speculation was fuelled after Richie and Madden registered Sparrow`s birth. The news comes after it was revealed Richie was keen to wed the Good Charlotte rocker following the death of her ex-fiance DJ AM, real name Adam Goldstein, in August. "Nicole has never been in a rush to get married to Joel. She`s so happy with him and their little family that she didn`t feel the need to change the way things were between them," a source close to Richie said. "But when Adam died, she freaked out. She realised life is fragile and short. She doesn`t want to have any regrets at all, and she does want to be Joel`s wife," the source added. Bureau Report