The 33-year-old former Holly's World and The Girls Next Door star wed Pasquale Rotella in Disneyland on Tuesday, Us Weeklyreported.
"Entertainer/model/producer Holly Madison exchanged vows with CEO and founder of Insomniac Events Pasquale Rotella on Tuesday, September 10th, at 10:40PM," the former Playboy model's representative told Us.
"Their 6-month-old daughter Rainbow was the surprise guest of honor. The wedding was held inside Disneyland Resort in Anaheim, Calif. This is the first marriage for both."
The couple reportedly closed the Magic Kingdom to the public and enjoyed the park all to themselves. They exchanged vows after the park shut down in New Orleans Square outside the entrance of the Pirates of the Caribbean ride.
Madison shared a photo on her official blog on Monday of the pair holding up their marriage license.
"We did it!" Madison wrote. "Last wedding prep item taken off the checklist-we went and got our marriage license this morning!"
Madison and Rotella have been dating since 2011 and got engaged in June when Rotella popped the question at the top of the Ferris wheel at EDC Las Vegas.
Rotella reportedly put a ring on it three months after the pair welcomed their baby girl into the world in early March. Madison said at the time she was shooting to get married on August 14.
Madison and Hugh Hefner, Playboy's founder and editor-in-chief, split in the Fall of 2008 after they determined they wanted different things out of their relationship. Madison desired to get married and have children, while Hefner was hesitant to wed again after two failed marriages that ended in divorce.
Holly's World, originally titled Planet Holly, first premiered in December 2009 as a one-off special. However, its impressive ratings led E! to order an eight-episode season which debuted in June 2010.
The network premiered a second season of Holly's World in January 2011, but the series was canceled after the second season concluded in April of that year.