The sporadically unemployable "actor" Kevin Federline (finally) books himself a job!

Britney's soon-to-be ex-hubby has won a plum guest-starring role on long-running WB series One Tree Hill, where he will, presumably, play an out-of-work rapper/divorcee who wakes up one day after a three-year bender and realizes that he's got two kids, a closet full of wifebeaters and an ex who smells like fried chicken.

Ladies…start your TiVos.

[TMZ]