Has Britney Met Mr. Right?

Not long ago, Britney Spears was better known for making headlines than making records. But these days, the former showbiz train wreck is chugging along without incident as she wows audiences on her Circus tour. Her signature sass is back, as is her killer body, which is buffer than ever.

Above all, Britney radiates a glow – and for good reason: According to friends, the pop princess has finally found her Prince Charming, longtime friend and agent Jason Trawick.

"He's fiercely protective of her," a colleague tells OK! of the 37-year-old William Morris agent, who has been the singer's rock of reliability, even in her darkest period. But while another insider claims Jason is merely protecting his investment ("Britney's dad pays him a lot of money"), the colleague insists they're the real deal: "He was there when everyone else had written her off, reconstructing her comeback, reminding her that fans still loved the old Britney and wanted her to be happy."

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Even her sons, Jayden James and Sean Preston, get along with Jason, who accompanied the family on a trip to the Bahamas in May.

"Britney's boys adore him," says the source, and her parents Jamie and Lynn Spears "think he's amazing."

The two first met seven years ago when Britney was pitching a TV show for her cousin. "She thought he was cute," recalls the insider, "and she'd ask him to accompany her to events or to hang out."

But then Brit's life spiraled out of control, after two marriages, two pregnancies and her public meltdown. Jason never wavered, however.

"He remained a staunch source of support. When she was lonely, she could call him on a moments notice — this was even before they became intimate."

Given Britney's history of fast-tracking relationships, could another wedding be on the horizon?

"Jason set her back on course to do what she loves," his colleague says. "He's one of the only people she can trust."