Let's make this birthday one to remember.

43 years old (Born on September 21, 1981)

Television personality, actress, author; She is famous from 'The Simple Life' Reality Show.

Is often seen singing karaoke alongside Lindsay Lohan, Bo Barrett, Michelle Rodriguez, and Emile Hirsch. Engaged to Joel Madden. [March 2007] Along with Tara Reid, Paris Hilton, Nicky Hilton, Bijou Phillips, Kimberly Stewart and Lindsay Lohan one of Hollywood's most famous Party girls. Was adopted by Lionel Richie and his then-wife Brenda Harvey-Richie in 1990 and renamed Nicole Richie. Named #37 on the Maxim magazine Hot 100 of 2005 list.

She is currently (2004) a member of fledgling rock band "Darling" along with model Josie Maran, and society sisters Soleil Alberti and Sofia Alberti.

Was offered and accepted the chance to star in "The Simple Life" (2003) with her pal Paris Hilton after Nicky Hilton turned it down.

Has an exotic Bengal cat named Chi-Chi-Cheeta.

Attended the University of Arizona at the same time as professional basketball player Luke Walton, actress Heather Blair and reality TV star Kourtney Kardashian.

Had a falling out with co-star and former best friend Paris Hilton. [2005]

Is friends with singer Fefe Dobson.

Has a dog, Foxy Cleopatra the Dog, named after Beyoncu00e9 Knowles's character in Austin Powers in Goldmember (2002).

Is into reading and learning about different religions, something she had experience with on Simple Life (2002) when she stayed with a family that practiced Islam.

Her album will be coming out in early 2005.

Nicole and her boyfriend, Joel Madden, became the parents of a girl, Harlow Winter Kate Madden, on January 11, 2008 at Los Angeles' Cedars-Sinai Medical Center. Harlow weighed in at six pounds, seven ounces.

Attended The Buckley School with her best friend Paris Hilton.

Her godfather is Michael Jackson.

Was one of the guests at Lindsay Lohan's 19th birthday party

Along with Beyoncu00e9 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.

Deejay Adam Goldstein gave Richie a pink sapphire ring while they were engaged.

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.

Recorded a demo CD in preparation for her upcoming album.

Graduated from Montclair College Prep School.

Called off engagement to Adam Goldstein.

Has a dog named Honeychild.

Niece of Sheila E., Juan Escovedo and Zina Escovedo.

Was arrested on suspicion of DUI on December 11, 2006 in Burbank, California.

Good friends with actress Mischa Barton.

Her father, Lionel Richie, wrote the song "Ballerina Girl" for her.