Kevin FederlineKevin Federline has been busting a gut recently to prove he’s not just a stoner slacker, living off Britney’s wealth.

In his bid for rap success, he’s apparently working a solid five day week: “Monday through Friday, I get up at 7:30am, train at the gym for two hours, then go to the studio.

“I have weekends off to see my kids and to spend time with my old lady.”

He doesn’t even have time for any of his hobbies: “I have no golf game anymore,” he moaned to Blender magazine recently.

Aww, diddums.