I've always wanted to know why in some lyrics, texts or spoken english, people use 'don't' where ir should be 'doesn't'. I guess that (at least in song lyrics) it is a matter of space or rhyme, but I don't know if I'm right.
Is it a languaje deformation or a well written sentence?
I'm waiting for your answers!
PS: As you may have guessed, I'm not a translator =P