Initially gained fame as Paris Hilton's socialite co-star on the reality show The Simple Life. She then became a mentor on the NBC series Fashion Star. In 2014, VH1 began airing the series #CandidlyNicole, which is based around her Twitter feed.
She first met Paris Hilton, while studying at The Buckley School.
Known for her style, she started a successful jewelry and accessories line called House of Harlow.
She attended the University of Arizona at the same time as fellow reality star Kourtney Kardashian.