The women were featured again on the covers of the September 2006, March 2008, and February 2009 issues.
which revolved around her life at Planet Hollywood in Las Vegas.
In July 2015, Madison released her first book and memoir, Down the Rabbit Hole: Curious Adventures and Cautionary Tales of a Former Playboy Bunny.
To afford her college tuition, Holly competed to become a Hawaiian Tropic model and worked as a waitress at Hooters.
Madison is most widely recognized for her role in the E!
hit reality television show, The Girls Next Door and for her own series, Holly's World.