Shortly after 6 p.m. PST, Aguilera, 24, and Bratman, 28, exchanged vows -- and bands designed by London jeweler Stephen Webster -- in front of formally dressed family members and friends, including Aguilera's longtime manager Irving Azoff, (who introduced the couple in 2002), her mother, and her team of dancers, according to sources at the wedding.

The bride spent Saturday afternoon preparing in her cottage at Napa's Auberge Du Soleil hotel, then she left her hotel for the wedding site in a black stretch limo shortly after 3 p.m. (Bratman arrived a half hour later in his own limo with his father.) Upon arriving at the Staglin vineyard in nearby Rutherford, Aguilera was fitted into a stunning Christian Lacroix dress. "Christina wanted this to be a dream wedding," says a close friend. "Every detail was personally approved by her."

Those said sources totally broke Christina Aguilera's three-page confidentiality agreement.

According to the Daily Mail each of the 150 guests invited to watch the pint-sized pop princess exchange vows with her fiance Jordan Bratman had to hand over the legal document before they were allowed to take part in the celebrations.

All the guests were sent the contract in a bid to ensure that even the tiniest detail of the wedding remains secret - although photographers were camped out at a farmhouse in the Napa Valley from the start of the festivities on Thursday.

Guests including singer Justin Timberlake and his film-star girlfriend Cameron Diaz, actresses Carmen Electra and Drew Barrymore and musicians Nelly and Pink, were told precisely what they were not allowed to discuss with 'any third party.'

Bratman, and Aguilera, became engaged on Feb. 11, while on vacation in Carmel, Calif. Bratman proposed in a hotel room filled with rose petals, red and pink balloons and gift boxes, each containing a present and a self-penned poem.

Pictures - Christina Aguilera, at her hotel getting ready + Jordan Bratman Crying - JJB

Christina's Rehearsal Dinner Japanese Theme. JJB