Christina Aguilera ties the knot

Singer Christina Aguilera displays her engagement ring. File picture / Reuters

Christina Aguilera has tied the knot with music executive Jordan Bratman, in an extravagant ceremony in northern California.

Aguilera and Bratman's Napa Valley nuptials were held at a sunset gathering at an exclusive mountain resort at the weekend.

Guests included Sharon Stone, Cameron Diaz and Drew Barrymore.

The newly-weds were scheduled to depart today for an extended honeymoon at an undisclosed location.