Christina Aguilera's boyfriend proposed to her on the day before Valentine's Day.

The singer announced the news on Twitter on Friday by posting a photo of her hand holding Matt Rutler's - with a giant diamond engagement ring as the focal point. The shot was taken in a tropical environment with palm trees and the ocean in the background.

Aguilera captioned the image, "He asked and I said..."

The pop star met Rutler on the set of the 2010 film "Burlesque," and they have been dating for three years.

Aguilera has been married once before to music marketing executive Jordan Bratman. They have a 6-year-old son together and officially divorced on Valentine's Day 2011.

Meanwhile, "The Voice" star helped to raise $37 million for charity last year in partnership with Yum! Brands as the World Food Program Ambassador Against Hunger. She helped raise awareness for starving populations throughout the world.