Nicole Richie Marries Joel Madden

Nicole Richie and Joel Madden are officially husband and wife.

The couple, who began dating four years ago and have two children together, tied the knot Saturday at the Los Angeles home of soul singer Lionel Richie, the bride's father, according to People. An array of stars helped the couple celebrate their nuptials, including No Doubt frontwoman Gwen Stefani, celebrity DJ Samantha Ronson and Madden's twin and Good Charlotte bandmember, Benji.

People also reports another unique guest made an impression at the wedding: the affair apparently included a trained elephant that was seen being led to the wedding site. According to UsMagazine.com, Reverend Run presided over the ceremony. A source told People the pair were going for "an Old Hollywood glamorous feel to the wedding."

The duo have a son, Sparrow, and a daughter, Harlow, together and announced earlier this year that they were ready to head down the aisle. Madden took to Twitter to announce the news in February.

"Yep. I'm engaged. Very happy," he said. "Yeah, we've been engaged for a while, so you're all kind of late on that. But thanks for the hoopla all the same."

While Madden turned to social media to inform fans of the engagement, Richie went to late-night TV, confirming to David Letterman that she and Madden were slated to swap vows.

"We actually recently are engaged, yes," Richie said.

In 2008, Madden told MTV News that becoming a family man has affected his approach to music, and he is more conscious of the image he presents to his fanbase.

"It's definitely made me think about my fans a little more, because they're people's kids, so I care what they think," he said. "And I care what I'm saying to them, because I want people to think about what they're saying to my child. ... So it makes me care about what I'm doing a little bit more. And it makes you think about other people too."