Help please! Country song, in a commercial...

I'm new so I dont know if this has been discussed or not...
It's a song commercial for a Carl's Jr/Green Burrito fast food restaurant, it's for the Green Burrito Taco Salad.
It gooooooes:


I gotta dollar in my pocket
And I'm gonna spend it on you
I know it aint much (babe?)
but It'll have to do


That's all i know.

Here's the link
it's called Truck Stop:

http://www.carlsjr.com/ontv


It's been driving me crazy though, I've searched almost everywhere! I even wrote a letter to the company asking for the name of the song lol.





THANK YOU!