Frank Zappa had a song with the title "Yo Mama" but the insult isn't to the mother per se:
    Maybe you should stay with yo mama
    She can do your laundry 'n' cook for you
    Maybe you should stay with yo mama
    'Cause you're really kinda stupid 'n' ugly too
He also had a song called "My Guitar Wants to Kill your Mama"

Then there's this:

They say that all is fair in love and war and child believe it.
When mama stay in St Tropez she had a fall or two.
And I'm telling it to you straight

So you don't have to hear it any other way.
Oh Annie - I'm not your daddy

Oh Annie - I'm not your daddy.
They say that out of sight is out of mind and child believe it.
Your mama was in search of love but all she got was you.
And I'm telling it to your face

So you don't have to hear it any other place.
Oh Annie - I'm not your daddy

Oh Annie - I'm not your daddy

See if I was in your blood then you wouldn't be so ugly.
And I'm telling it to you straight

So you don't have to hear it any other way.
Oh Annie - I'm not your daddy

Oh Annie - I'm not your daddy.