Gotta go with:

Magnetic Fields - "Papa Was a Rodeo"

How can you go wrong with lyrics like:

It's only fair to tell you now
that I leave early in the morning
and I won't be back till next year
I see that kiss-me pucker forming
but maybe you should plug it with a beer, cuz

Papa was a rodeo - Mama was a rock'n'roll band
I could play a guitar and rope a steer before I learned to stand
Home was anywhere with diesel gas - Love was a trucker's hand
Never stuck around long enough for a one night stand
Before you kiss me you should know
Papa was a rodeo