Hollin Sue Cullen, professionally known as Holly Madison, born December 23, 1979 is an American model, showgirl and television personality. She is widely known for being one of Hugh Hefner's girlfriends on the reality television series The Girls Next Door. Madison now has her own reality series Holly's World.
Although not a Playboy Playmate, she has appeared in nude pictorials with her Girls Next Door costars, Bridget Marquardt and Kendra Wilkinson. In 2009, she appeared as a contestant on the eighth season of Dancing with the Stars.