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Britney Spears was visited in rehab by her two sons at the weekend.
The singer's estranged husband Kevin Federline took their two sons, 17-month-old Sean Preston and five-month-old Jaden James, to see their mother at Malibu's Promises rehab centre.
"The kids are his number one priority and they always have been," a source told People magazine
"He's so stressed out right now. He only wants the best for Britney and the kids."
It was Kevin's second visit to Promises - he first visited Britney on Friday without the children.
Putting their bitter divorce aside, Kevin reportedly told Britney: "I'll stand by you if you clean up your act. I just want you to get well."
After leaving rehab for the second time last week, Britney was photographed furiously attacking a car with an umbrella when Kevin - who was looking after her two children, Sean Preston and Jayden James - refused to see her.
She later returned to rehab, after fearing her erratic behaviour could cost her custody of her sons.
On searching the troubled star, staff at Promises allegedly found a "death list" written by Britney which listed her enemies.
Top of the list was Kevin.
Britney, 25, checked into rehab for the third time in six days last week after having an apparent nervous breakdown.
Spears's father, Jamie Spears, 54, told FOX News from his home in Louisiana last week that his daughter is "a sick little girl. ... We're just trying to take care of her."
The 'Oops... I Did It Again' star stunned the world by shaving off her hair in a Los Angeles salon on Friday 16 February, after the hairdresser refused to shear her.
- BANG! SHOWBIZ
