Britney Spears has accepted a proposal to wed former flame John Sundahl, celebrity insiders claim.

Britney met the 40-year-old real estate magnate during a stint at Malibu’s Promises Rehab in 2007.
The multimillionaire’s personal pilot, who referred to himself as “Lance Chase,” told The New York Daily News that Brit, 28, recently rekindled her romance with Sundahl and will marry the Woodland Hills, California man–after a proposal at Subway no less– once she wraps up her sold out Circus World Tour later this year:

“Britney and John used to date, but they reconnected after her show in New Jersey, and now they’re engaged. He got down on one knee in a Subway sandwich shop in Santa Monica a week ago and proposed with a $4.5 million marquise-cut diamond that he bought at a Frankfurt jewelry store,” Lance dished.

“They plan on getting married at his aunt’s farm in Germany in six weeks. It’s very hush-hush, even to the employees. He’s even putting a $350K fence around the property.”

The Daily News managed to catch up with Sundahl, who didn’t exactly deny the Britney wedding rumors.

“I don’t want to talk about that,” he told reporters. “Britney doesn’t want to do anything until the tour is over. She wants press for her tour and not for an engagement.”