I AIN'T GOT NO MONEY

Sometimes correct grammar must be sacrificed for the spirit of the words:

YOU AREN'T ANYTHING BUT A HOUND DOG
for
YOU AIN'T NOTHIN' BUT A HOUND DOG - Elvis Presley

AM NOT MISBEHAVING
for
AIN'T MISBEHAVIN' - Fats Waller

IT DOESN'T MEAN A THING IF IT DOESN'T HAVE THAT SWING
for
IT DON'T MEAN A THING IF IT AIN'T GOT THAT SWING - Ella Fitzgerald

IT ISN'T NECESSARILY SO
for
IT  AIN'T NECESSARILY SO

IT IS I
for
IT'S ME