Marina of Hot for Words (who I've mentioned before) stars in a music video by JamesatWar parodying the "bad grammar" in pop songs.
I'm trying to see the funny side of this, but I can't. This is just plain snobbery aimed at people who don't use the same language JamesatWar does. It borders on offensive since a lot of the language in pop music, the sort of language that the song is parodying, is African American Vernacular English. The native language of a large number of Americans, which is slightly different from your own - that's "bad grammar." Being creative with words in a song to create interest and rhymes - that's "bad grammar."
I could get all literal and comment on some of the inaccuracies (in' for ing isn't as simple as leaving the last letter off words) or silliness (no idea what a singular verb is?) or offensiveness (never changed ma verbal habits since I was three) but I've had enough. I'll just leave you with a selection of the lyrics.
take the last letter off the end of words
now you're talkin' wit' some bad grammar
I ain't pullin' tricks with my linguistics
I'm jus' talkin'
I don't use no syntax
I ain't got no idea what a singular verb is
I'm worser at superlatives
and I don't ever use no double negatives
baby it's alright now don't be skurred
it's all the latest craze to mispronounce some words
like instead of "that right there"
we would say "that right thurr"
and we won't even spell it right
when I took my english class you know I barely passed
listen baby girl
got no proper verbal skills
but I be wearin' grillz
listen baby girl
I ain't gotta talk the talk
to make ma record pop
so that's why baby girl
when I'm talkin' it seems impaired
yo ma gramma ain' no prodigy
my strongest suit isn't morphology
it's hard for people to be understanding me
never changed ma verbal habits since I was three
so listen baby girl
before you make another sound
make sure you're on par
cuz listen baby girl
we talkin' with some bad gramma'