Her godparents are Michael Jackson, Quincy Jones and oil heiress Nancy Davis.
Was adopted by Lionel Richie and his then-wife Brenda Harvey-Richie in 1990 and renamed Nicole Richie.
Attended the University of Arizona at the same time as professional basketball player Luke Walton, actress Heather Blair and reality TV star Kourtney Kardashian.
She is currently (2004) a member of fledgling rock band "Darling" along with model Josie Maran, and society sisters Soleil Alberti and Sofia Alberti.
Biological father is believed to be Peter Michael Escovedo and a reunion was staged on The Wayne Brady Show (2002). But Nicole has stated in interviews that Escovedo is not her birth father.
Attended The Buckley School with her best friend Paris Hilton.
Was offered and accepted the chance to star in The Simple Life (2003) with her pal Paris Hilton after Nicky Hilton Rothschild turned it down.
Has a dog named Honeychild.
Has a dog, Foxy Cleopatra the Dog, named after Beyoncé Knowles's character in Austin Powers in Goldmember (2002).
Niece of Sheila E., Juan Escovedo and Zina Escovedo.
Graduated from Montclair College Prep School.
Her album will be coming out in early 2005.
Is friends with singer Fefe Dobson.
Her father, Lionel Richie, wrote the song "Ballerina Girl" for her.
Along with Tara Reid, Paris Hilton, Nicky Hilton Rothschild, Bijou Phillips, Kimberly Stewart, Lindsay Lohan & Kim Kardashian West, is one of Hollywood's most famous party girls.
Had a falling out with co-star and former best friend Paris Hilton. 
Along with Beyoncé Knowles, Veronica Webb, Kelly Osborn, Angie Everhart, Alexandra Richards, Irina Pantaeva, Marisa Miller, Wyclef Jean, Rachel Hunter, Naomi Campbell and Janice Dickinson, she participated in the "Fashion for Relief" show on 16 September, 2005 in New York, a benefit for AmeriCares to support victims for Hurricane Katrina. Gwen Stefani and Gavin Rossdale were among the celebrities who attended.
Called off engagement to DJ AM.
Named #37 on the Maxim magazine Hot 100 of 2005 list.
Deejay DJ AM gave Richie a pink sapphire ring while they were engaged.
Was one of the guests at Lindsay Lohan's 19th birthday party
Is into reading and learning about different religions, something she had experience with on The Simple Life (2003) when she stayed with a family that practiced Islam.
Recorded a demo CD in preparation for her upcoming album.
Good friends with actress Mischa Barton.
Has an exotic Bengal cat named Chi-Chi-Cheeta.
Was arrested on suspicion of DUI on December 11, 2006 in Burbank, California.
Engaged to Joel Madden. [February 2010]
Is often seen singing karaoke alongside Lindsay Lohan, Bo Barrett, Michelle Rodriguez, and Emile Hirsch.
Gave birth to her 1st child at age 26, a daughter named Harlow Winter Kate Madden on January 11, 2008. Child's father is her boyfriend (now husband), Joel Madden.
In January 2008, she and Joel Madden sold the first pictures of their newborn daughter, Harlow, for $1,000,000.
Gave birth to her 2nd child at age 27, a son named Sparrow James Midnight Madden on September 9, 2009. Child's father is her boyfriend (now husband), Joel Madden.
Hospitalized with pneumonia at Cedars-Sinai Medical Center in Los Angeles [November 18, 2009].
Was close friends with Aaliyah.
Sister-in-law of Benji Madden and Cameron Diaz.
Can be seen on her new FOX reality show with best friend, Paris Hilton, The Simple Life (2003). [January 2004]
Attended the launch of the T-Mobile Sidekick 3 alongside actress pal Mischa Barton. [June 2006]
Release of her book, "The Truth about Diamonds: A Novel". 
Filming another season of The Simple Life (2003) with Paris Hilton, although they are both filmed separately due to their falling-out. [March 2006]
Announced she will be designing her own line of maternity clothes. [March 2008]
Went to Ashley Margolis and Zoe Winkler's "Host a July Bash with Drinks by 10 Cane Drum", along with other celebrities. [July 2006]
Attended the Social Hollywood Bash presented by Charlize Theron to Benefit the Charlize Africa Outreach Program among hundreds of other celebrity guests. [June 2006]
Engaged to Disc Jockey DJ AM (February 8, 2005) No wedding date currently set. [February 2005]
Longtime friend of Tracey E. Edmonds. One of Tracey's sons is her god-brother.