Last week's settlement between the pop princess and Federline was signed by a judge on Friday -- marking the official end to their long-running custody battle over tots Sean Preston and Jayden James.

"She's thrilled -- to have more time with her kids has been her motivation to get well," Britney's lawyer tells People magazine of the "Gimme More" singer. "In light of her outstanding conservatorship, she couldn't have asked for anything more."

Spears has agreed to give Kevin full custody, while gaining two visits and one overnight per week with her tykes. In addition, Brit has agreed to pay K-Fed $20,000 per month in child support, and pay off his legal fees.