Natasha Bedingfield and boyfriend Matt Robinson arrives at the New York Premiere Of "Lipstick Jungle" at the Hearst Tower on January 31, 2008 in New York City.
George Napolitano/FilmMagic

Natasha Bedingfield is getting married to her beau of two years, businessman Matt Robinson, a source tells Usmagazine.com.

The Brit singer, 26, told guests at a surprise performance at NYC's Hiro Sunday night that she'd accepted his proposal earlier that day.

Check out photos of star engagement bling.

Bedingfield, famous for singing the Hills theme song, "Unwritten," opened up to Us about her relationship earlier this year.

"What should I say about him? I'm in love!" Bedingfield told Us in May.

"He’s a business man, and it really is a good balance for my career because he’s always a solid rock that I just feel very comfortable with, and I feel very loved," she said.

"I was single for a long, long time and I kind of went down kicking and screaming because I liked my single-ness, but he was someone definitely worth giving up being single for," she added.

Look back on celeb wedding photos.

The low-key couple prefer all-you-can-eat Brazilian BBQ to red carpets for L.A. date nights.

“We go hiking together... it's very romantic," Bedingfield told Us of her California-based guy.

See photos of Bedingfield's summer body makeover.

"We like doing the same things," Bedingfield said. "He's very built. Everyone thinks he's my bodyguard!"

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