FERGIE, JOSH DUHAMEL GET MARRIED!

Fergie and Josh Duhamel are husband and wife. The two tied the knot Saturday at an ultra-private ceremony at the Church Estates Vineyards in Malibu, Calif., Usmagazine.com can confirm. Black Eyed Peas' will.i.am was among the guests. Around 5:09 p.m., attendees were overheard saying that the two had wed; cheers were also heard outside the estate.

Fergie, 33, wore a fitted, white ruched, corseted wedding gown with a mesh tulle overlay, spaghetti straps and a long train designed by Dolce & Gabbana. The singer -- whose veil was also made by the designer -- was draped in millions of dollars worth of one-of-a-kind diamonds by H.Stern. Duhamel, 36, also wore Dolce & Gabbana, as did the bridesmaids (in black dresses) and groomsmen (in black suits and white ties).

The two exchanged H.Stern rings, with each band engraved with special personal messages by the bride and groom. Her engagement ring had a round, 4-carat brilliant cut diamond set amid other diamonds, with colors ranging from white to cognac. A narrow colored diamond wedding band was designed to match. Duhamel's ring was made of 18K white gold with a brush finish.

The singer (real name: Stacy Ferguson), and Duhamel have been dating since 2004 after Duhamel confessed to In Style that she was his celeb crush.

"I had read in a magazine that he had a naughty dream about me," Fergie told Playboy last year. "All my friends knew about him because he had been a soap opera star. I'm not into soap operas, but they told me, 'You gotta go out with him. Do it for the group. Take one for the team.' "Time went by, and I saw on the schedule that we were taping a show called Las Vegas, and I thought, 'Is this the show he's on?'" she went on. "We met, and I said, 'I read you had a dream about me.' He said yeah, and I asked, 'Was it good?' He said it was. So we hit it off."

He popped the question in late 2006. Of wedding plans, Fergie told USA Today, "I have a big stack of wedding magazines, and I've never picked one up before in my life." Duhamel recently told Entertainment Tonight that plans were "all going great. It's fun, actually. We're both really excited about it, and it will be good." Last month, Fergie told Blender married life won't be so different for them. "We're practically married, anyway," she said. "I'm madly in love with him. He understands how to treat a woman and give me respect."