K-Fed is forking over his own dough to fund a follow-up to his universally panned album, “Playing with Fire.” Federline is consulting with music business insiders and is working in his own studio to produce the album that will feature former “That 70’s Show” star Wilmer Valderamma.

The National Enquirer is reporting Kevin is trying for full custody of his two sons with troubled singer Britney Spears.

Kev reportedly followed Brit to Miami during her recent non-concerts there to try and get enough evidence for a custody battle:

“Kevin flew the boys and their nanny to Miami,” an insider revealed. “He plans to tap his spied in Florida to gather the evidence he needs to busy Britney doing drugs. He’s determined to get full custody of their sons.”