Nicole Richie will wed fiance Joel Madden at her father Lionel's Hollywood estate next month, according to new reports.
The socialite's best pal Christina Aguilera will be too busy promoting her movie debut "Burlesque" to attend the nuptials, but Eonline.com reports Samantha Ronson will be one of the bridesmaids.
A source confirms to the website that Richie and Madden's daughter, Harlow, will be the flower girl.
Richie was overheard chatting about the nuptials with best friend Aguilera at the Soho house in Los Angeles earlier this month.
Richie and Madden have been dating for over four years and have two children together - Harlow, two, and Sparrow, one.
See more photos of Nicole here!