Britney Spears has launched a campaign to win back ex-husband Kevin Federline. The one-time pop princess is hoping her reunion bid will keep the rapper turned actor from continuing his custody bid against her.

“Britney’s bouncing off the walls with rage and has been calling Kev day and night to check he’s not with Nicole (Narin),” according to European tabloids.

The Sun, who is the first publication in the world to review Britney’s November 12th comeback album, claims the singer professes her undying love for Federfreak on the dance track ‘Heaven On Earth.’

According to The Sun: “It is about her ex-hubby KEVIN FEDERLINE. It’s clear from the lyrics that she still loves him.”

“I’d move across the world for you, just tell me when, where, I’ll come to you.”

“She’s desperately jealous and wants to keep Kevin’s attention on her. She wants him back. She thinks by getting Kevin back he’ll drop the custody battle.”

So how does K-Fug feel about getting back together with the woman he once called wifey? The flopped rapper has reportedly told Britster to head ‘to the left, to the left.’

“….That’s not going to happen,” says the tabloid snitch.