Career: Nicole first found fame thanks to the television series The Simple Life in which she co-starred with Paris Hilton. In 2005 she released a semi-autobiographical novel, The Truth About Diamonds, and in 2008 she launched a successful jewellery line, House of Harlow 1960, expanding into clothing and shoes in 2010.
Relationships: After relationships with DJ AM and Brody Jenner, she started dating Joel Madden, lead singer with Good Charlotte, in November 2006. They married on 11th December 2010 and have two daughters, Harlow Winter Kate Richie-Madden, born 11th January 2008, and Sparrow James Midnight Madden, born 9th September 2009.
FYI: In July 2007 she was sentenced to four days in jail for driving under the influence. She served just 82 minutes of the sentence due to overcrowding. She completed her probation in December 2010.