The two tied the knot under magnolias filled with white roses 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.)
"It's official! Fergie and Josh tied the knot tonight in Malibu," her manager tells Us. "The Black Eyed Peas were all there. The ceremony was incredible! And they're still partying!"
Celebrity lawyer Henri Brandman told MailOnline that Blake had instructed him to launch the action on the grounds of Amy's adultery. It is thought that Blake will go for half of Amy's £10 million fortune.
The move comes as loved-up Amy told a Sunday newspaper that she has finally kicked her drug habit. The star also admitted that she had 'forgotten I'm even married' to Blake, claiming 'our whole marriage was based on doing drugs'.
The US singer - who follows the Jewish rooted faith Kabbalah - has added to her personal security team and warned ex-husband Guy Ritchie to increase protection for the children they raise, Lourdes 12, Rocco, eight and adopted David Banda, three.
A source told Britain's The People newspaper: "Madonna is well known for her Kabbalah faith and support for Israel, having visited the country several times.
"This seems to upset extreme Muslims who forget she respects people of all faiths whether Islamic, Christian or Buddhist. Like anyone else she would like to see a peaceful end to the problems in Gaza.
"But she is beside herself with worry, not just for her own safety, but for that of the children."
Extremists angry about the current situation in Gaza - where Israeli and Palestinian groups have been warring since the beginning of the year - have taken their attack on western values to a personal level, writing hate messages about Madonna on websites.
According to The People, Palestinian leader Abdel-Al wrote on site Islambase.com: "If I meet these w****s I will have the honour of to be the first one to cut the head off Madonna if they will keep spreading their satanic culture against Islam."