Kevin Federline: IRS' Most Wanted

Kevin Federline apparently doesn't pay his taxes.

The IRS is looking to collect tens of thousands of dollars from income allegedly earned by Britney Spears' former husband - $57,615.39 to be precise.

A federal tax lien was filed against the FedEx man February 14 (Happy Valentine's Day!) claiming he owes $30,517.16 from '09 and $27,098.23 from '10.

Kevin Federline - Lose Control (Live)

We know ... who knew K-Fed made any money ... ever.

It certainly wasn't from his music career (above), but he was on Celebrity Fit Club once, so, there's that? Good luck coming up with the money in any case.

Maybe he can hit up Brit for some table scraps.